United States v. Wihbey

                United States Court of Appeals
                            United States Court of Appeals
                    For the First Circuit
                                For the First Circuit
                                         
No. 95-1291

                        UNITED STATES,
                          Appellee,

                              v.

                        ROBERT WIHBEY,
                    Defendant, Appellant.

No. 95-1394

                        UNITED STATES,
                          Appellee,

                              v.

                       CLAUDE WHITMAN,
                    Defendant, Appellant.
                                         

        APPEALS FROM THE UNITED STATES DISTRICT COURT
              FOR THE DISTRICT OF MASSACHUSETTS
     [Hon. Frank H. Freedman, Senior U.S. District Judge]
                                                                    

                                         

                            Before
                    Cyr, Boudin, and Stahl,
                       Circuit Judges.
                                                 

                                         

Jack St.  Clair with  whom Barbara  J.  Sweeney was  on brief  for
                                                           
appellant Wihbey.
Vincent A. Bongiorni for appellant Whitman.
                                
Dina Michael  Chaitowitz, Assistant United  States Attorney,  with
                                    
whom  Donald  K.  Stern, United  States  Attorney,  was  on brief  for
                               
appellee.

                                         

                       February 6, 1996
                                         


          STAHL, Circuit Judge.  Robert  Wihbey  and   Claude
                      STAHL, Circuit Judge.
                                          

Whitman were tried by  a jury and convicted of  conspiracy to

distribute  marijuana.   The  jury also  convicted Wihbey  of

possession  of marijuana  with  intent to  distribute.   Both

Wihbey and Whitman challenge their convictions on the grounds

that  the   prosecutor  made  improper  remarks   in  closing

argument,   and   that   the   government   proved   multiple

conspiracies,  not  the  single  conspiracy  charged  in  the

indictment.   Wihbey argues that the warrantless entry of his

home was not justified by exigent  circumstances and that the

evidence  against him does not support the drug quantity used

to calculate his sentence under the guidelines.  Whitman also

challenges  his sentence,  asserting that he  did not  play a

leadership role in the  conspiracy that justified an increase

in   offense  level.    Finding  no   error,  we  affirm  the

convictions and the resulting sentences.

                              I.
                                          I.
                                            

                       FACTUAL OVERVIEW
                                   FACTUAL OVERVIEW
                                                   

          The evidence, taken in  the light most favorable to

the  verdict, permitted the jury to find the following facts.

See  United States v. Twitty, No. 95-1056, slip op. at 2 (1st
                                        

Cir.  December 28,  1995).   In the  spring of  1991, Richard

Britt  and  Thomas  Rohan  agreed to  work  together  dealing

marijuana.   Initially, they intended their  source of supply

to be appellant Claude Whitman and one Frank Camyre, but when

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                                          2


Camyre and Whitman repeatedly  failed to produce as promised,

Rohan cultivated another supplier, Robert Wihbey.  Meanwhile,

an informant for the Drug Enforcement Administration ("DEA"),

David DeCastro, had convinced Britt and Rohan that he had the

desire and ability  to buy  250 pounds or  more of  marijuana

(about  $500,000 worth).  Britt and Rohan, eager to recoup an

earlier loss in  a failed  marijuana deal, agreed  to act  as

middlemen in a large  sale to informant DeCastro.   Britt and

Rohan  informed both  of their  sources that  they had  a big

buyer on  the hook.   On  or  about November  22, 1991,  both

sources  independently obtained  shipments of marijuana.   On

November  23,  1991,  DEA  agents arranged  for  DeCastro  to

conduct  controlled  buys the  following  day  from both  the

Wihbey source and the Whitman/Camyre source.  Britt and Rohan

were arrested  during a buy from  Wihbey's associate, Michael

Weiner, who  was also arrested; all  three immediately agreed

to  cooperate.  Weiner led  the DEA agents  to Wihbey's home,

where they  arrested Wihbey and searched the premises.  Later

that day, Britt and Rohan cooperated with the DEA on a second

controlled buy,  from the  Whitman/Camyre source,  leading to

the  arrest of  Whitman, Camyre  and Whitman's  source, Roger

Brandt.   Further factual details will be  provided as needed

to analyze the several issues presented.

                             -3-
                                          3


                             II.
                                         II.
                                            

                    PROCEDURAL BACKGROUND
                                PROCEDURAL BACKGROUND
                                                     

          In  March 1993,  a  federal grand  jury returned  a

four-count indictment  that charged: in Count  One, that from

May  1991 through  November 23,  1991, Britt,  Rohan, Wihbey,

Weiner, Whitman, and Camyre  conspired to possess with intent

to distribute,  and to distribute, marijuana  in violation of

21  U.S.C.    846; in  Count Two,  that on  October  4, 1991,

Camyre  possessed  marijuana  with  intent  to distribute  in

violation of 21 U.S.C.    841(a)(1); in Count Three,  that on

November 22, 1991, Wihbey  possessed marijuana with intent to

distribute  in violation  of 21  U.S.C.    841(a)(1); and  in

Count Four, that on  November 23, 1991, Wihbey used  a pistol

during  and in  relation  to a  drug  trafficking offense  in

violation of 21 U.S.C.   924(c).

          Wihbey filed a motion to suppress physical evidence

and  a statement  obtained  from him  during the  warrantless

arrest  and search  at his  home, but  the motion  was denied

after an evidentiary  hearing.   Prior to trial,  all of  the

defendants  except  Wihbey  and Whitman  pleaded  guilty  and

agreed to  cooperate with the  government.  After  a five-day

trial in May 1994,  the jury found Wihbey and  Whitman guilty

of the conspiracy  count and Wihbey guilty  of the possession

with  intent  to  distribute   count.    The  jury,  however,

acquitted Wihbey on  the firearm count.   Wihbey and  Whitman

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                                          4


were sentenced in November 1994 and promptly filed notices of

appeal.

                             III.
                                         III.
                                             

                          DISCUSSION
                                      DISCUSSION
                                                

A.  Warrantless Entry of Wihbey's Home
            A.  Warrantless Entry of Wihbey's Home
                                                  

          1.  Facts
                               

          The magistrate  judge found the following  facts at

the suppression hearing.  The  DEA investigation that led  to

the arrests in this case  was focused on a controlled buy  of

marijuana by the informant  DeCastro from Whitman and Camyre,

with Britt  and Rohan acting as  middlemen.  It was  only one

day before  the scheduled Whitman/Camyre buy  that DEA agents

learned that  Rohan had another source, Robert  Wihbey.  Late

in the afternoon of Friday, November 22, 1991, Rohan told the

informant  DeCastro that he had an  unnamed source that could

deliver 250 pounds of marijuana.  When DeCastro expressed his

interest in  purchasing  from both  this new  source and  the

Whitman/Camyre source, Britt and  Rohan drove DeCastro to the

Beekman   Place   condominiums   in  Agawam,   Massachusetts.

DeCastro wore a  transmitter, and was under audio  and visual

surveillance by  DEA special  agent Sean McDonough  and other

agents.   Rohan parked the car, got out, and returned shortly

thereafter   with  a  sample   of  marijuana  for  DeCastro's

approval.  The agents were unable to discern,  however, which

condominium unit Rohan  had entered, nor  did they learn  the

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                                          5


name of the new source.  DeCastro approved the  sample and he

and Rohan scheduled a 250 pound deal to take place at Rohan's

residence later that night.

          Early   that  evening,  DeCastro  called  Britt  to

confirm the arrangements, but  Britt stated that the delivery

would  have to  be  postponed until  8:00 a.m.  the following

morning,  Saturday, November  23, 1991.   The  following day,

Britt  and  Rohan met  DeCastro and  brought  him to  a house

(owned by Wihbey, but not used as his  residence) at 30 Arden

Street   in  Springfield,  Massachusetts.    There,  DeCastro

examined  ten pounds of  marijuana, and was  told by Wihbey's

associate, Michael Weiner, that there were thirty more pounds

in Weiner's  car.  Weiner advised the buyers that the rest of

the marijuana would be produced  in increments after the cash

for  the first  forty  pounds was  delivered  to the  source.

DeCastro said he  had to get his "money man," but he returned

instead with special agent McDonough, followed by a number of

DEA agents.   Britt, Rohan,  and Weiner were  arrested inside

the Arden Street house at about 11:00 a.m.; the DEA still had

not learned the identity  of the source (Wihbey) or  his unit

number at Beekman Place.

          Britt,  Rohan,  and   Weiner  promptly  agreed   to

cooperate with  the DEA agents,  and by 11:15 one  or more of

them had disclosed  that Wihbey  was the source  and that  he

lived  at  33 Beekman.    At  the  hearing,  agent  McDonough

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                                          6


conceded that at this  point he had probable cause  to arrest

Wihbey  and search  33 Beekman.   Nonetheless,  McDonough had

doubts  about  the credibility  of  the  three arrestees  and

decided to interview  them individually at  DEA headquarters;

these  interviews  began  at   11:30  that  morning.    Agent

McDonough  determined that  the  cooperating defendants  were

credible, and based on information they provided, that Wihbey

would grow suspicious if Weiner did not  return promptly with

$68,000 or call to explain the delay.  At   about  the   same

time, roughly noon, McDonough was also concerned with setting

up the  controlled buy  from Whitman and  Camyre.   McDonough

directed Britt to  contact Whitman or Camyre,  and the second

deal  was set  up  for  3:00  that  same  afternoon.    Thus,

McDonough was  involved to  some extent  with setting  up the

Whitman/Camyre  buy at the same time that he was preparing to

arrest Wihbey.

          Because  it was  Saturday, McDonough  believed that

application  for a warrant to arrest Wihbey in his home might

take  as long  as several  hours, and  that quick  action was

necessary  because Wihbey's growing  suspicion might motivate

him  to flee  or destroy  evidence.   At approximately  12:45

p.m., the DEA established surveillance of Wihbey's condo, and

at 1:00  p.m. Weiner and  Rohan entered, followed  by special

agent McDonough and other agents who "secured the apartment."

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                                          7


Wihbey  was found lying on  the basement floor  behind a pool

table, with a loaded pistol a few feet away.

          Agent  McDonough  placed  Wihbey under  arrest  and

advised him of his  rights.  McDonough then told  Wihbey that

they had no search warrant, but  would get one if needed;  he

asked  Wihbey to show the  agents where he  had marijuana and

guns.    Wihbey agreed,  and  during the  ensuing  search the

agents found 1200 grams of marijuana (about 2.7 pounds, which

McDonough characterized as "personal use" marijuana) and some

marijuana  paraphernalia.   Agent  McDonough  sought Wihbey's

cooperation, asking him to name his source.  Wihbey said that

he would  not give McDonough  the name of the  "guy above me"

because he  was a personal friend, but he would give the name

of the  "guy above him."   Agent McDonough  declined Wihbey's

offer of partial cooperation.

          2.  Analysis
                                  

          The  Constitution  requires  that  police  normally

obtain a warrant before  entering a person's home to  make an

arrest.   Payton v. New York, 445  U.S. 573, 590 (1980).  The
                                        

government  says,   however,  that  in  this   case  "exigent

circumstances" excused the warrantless entry.  In determining

whether  an  exigency  justifies  a  warrantless  search  and

seizure,  the test  is "whether  there is  such a  compelling

necessity for immediate action as will not brook the delay of

obtaining  a warrant."  United States v. Wilson, 36 F.3d 205,
                                                           

                             -8-
                                          8


209 (1st Cir. 1994) (quoting United States v. Adams, 621 F.2d
                                                               

41,  44  (1st  Cir.  1980)).    Exigency  determinations  are

generally fact-intensive and thus must  be made on a case-by-

case basis.   See United States  v. Donlin, 982  F.2d 31,  34
                                                      

(1st Cir. 1992), in  our past holdings, exigent circumstances

have commonly  included: (1) "hot  pursuit" of  a felon;  (2)

threatened destruction of evidence; (3) risk that the suspect

may  flee undetected;  and (4)  danger to  the safety  of the

public or the police.   See United States v. Tibolt, No.  94-
                                                               

2221, slip op. at 8 (1st Cir. Dec. 29, 1995).   Exigency must

be  assessed in light  of the totality  of the circumstances.

United  States v.  Veillette,  778 F.2d  899,  902 (1st  Cir.
                                        

1985), cert. denied, 476 U.S. 1115 (1986).
                               

          We defer  to the  district court's findings  of the

underlying  facts  unless clearly  erroneous,  but  we afford

plenary  review to  the district  court's legal  analysis and

ultimate conclusion.  Tibolt, slip op. at  8-9; United States
                                                                         

v. Curzi,  867 F.2d 36,  42 (1st Cir.  1989).  We  find clear
                    

error  only if, after reviewing all the evidence, we are left

with "the  definite and  firm conviction that  a mistake  had

been committed."  United States v. Rust, 976 F.2d 55, 57 (1st
                                                   

Cir. 1992).

          The magistrate judge who conducted  the suppression

hearing  characterized  this  as  a  "borderline  case,"  but

nonetheless denied  the motion  to suppress.   The magistrate

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                                          9


judge  found that  Wihbey had  consented to  a search  of his

condominium  after he had  been arrested.   Thus the critical

issue  was  whether the  entry  to  arrest was  justified  by

exigent circumstances.

          The magistrate judge determined  that circumstances

were exigent based upon the following five "factors."  First,

it was reasonable for the DEA agents to choose not to prepare

part  or all of  a warrant on  the day before  the arrest, as

they did not know whom they were to arrest or, with requisite

particularity, where  the arrestee  lived.  Second,  it would

have  taken "substantially more  than two hours"  to obtain a

warrant  at  the relevant  time,  Saturday  morning or  early

afternoon.   Third, it was reasonable for  agent McDonough to

bring  Britt,  Rohan,  and  Weiner to  DEA  headquarters  for

further debriefing  before seeking a warrant  or taking other

action.  Fourth, it was reasonable for the agents to conclude

that there  was a compelling necessity  for immediate action,

based on  the likelihood that Wihbey would grow suspicious of

the  delay  in Weiner's  return,  causing Wihbey  to  flee or

conceal  or destroy evidence.   Fifth, the  DEA agents' plans

for a  second controlled  buy from  Camyre and  Whitman later

that  afternoon did  not precipitate  the decision  to arrest

Wihbey without a warrant.   Wihbey objected to the magistrate

judge's  report and  recommendation,  but the  district court

adopted the report and denied the motion to suppress.

                             -10-
                                          10


          Before reviewing the  ruling below,  we narrow  the

issues  because  Wihbey  has  forfeited some  of  his  Fourth

Amendment  arguments  by  failing  to  press  his  objections

below.1   Wihbey's  challenge  to the  suppression ruling  is

therefore limited to those issues that he specifically raised

in  his  objection  to  the  magistrate  judge's  report  and

recommendation.   We  ignore Wihbey's  attempt to  "generally

object" to  the  magistrate judge's  report, as  well as  his

attempt to incorporate by reference the arguments made in his

pre-hearing  memorandum.   Wihbey  made two  objections  with

sufficient specificity:  (1) the  magistrate  judge erred  in

determining that  it was reasonable  for the agents  to delay

preparing for  a warrant  application until  Saturday morning

when  they learned  Wihbey's name  and address,  and (2)  the

magistrate  judge  erred  in  determining that  there  was  a

compelling   necessity  for  immediate  action,  because  the

exigency was  created by the  agents' investigative strategy.

We note that  Wihbey did not object to  any of the magistrate

judge's proposed  findings of the underlying  facts, but only

                    
                                

1.  Rule 3(b) of  the Rules for United States  Magistrates in
the  United  States  District   Court  for  the  District  of
Massachusetts requires  a party  who objects to  a magistrate
judge's findings and recommendations to identify specifically
the objectionable  portions  of  the  proposed  findings  and
recommendations and  to state the  basis for objection.   The
magistrate  judge's report  contained a  clear  warning about
this  rule,  advising Wihbey  that  failure  to comply  would
preclude appellate review, citing  United States v. Valencia-
                                                                         
Copete, 792 F.2d 4, 6 (1st Cir. 1986) (approving such a local
                  
rule).  See also 28 U.S.C.   636(b)(1).
                            

                             -11-
                                          11


to the reasonableness of the agents'  actions and whether the

facts  constituted  exigent  circumstances.    In particular,

Wihbey did not object to the finding that Wihbey consented to

the search after he was arrested; thus the issue before us is

whether  the warrantless  arrest  was  justified  by  exigent

circumstances.  In any  event,  we find  no error,  let alone

clear error,  in the  magistrate judge's  findings as to  the

underlying facts.  As to the forfeited  arguments that Wihbey

now raises, we find that none of the asserted errors rises to

the level of plain  error which might justify reversal.   See
                                                                         

United States v. Olano, 113 S. Ct. 1770, 1776-1779 (1993).
                                  

               a.   Should the agents have  started a warrant
                                                                         

               application earlier?
                                               

          Contrary to his assertion on appeal, Wihbey's right

to be  free from unreasonable  searches and seizures  did not

impose a duty  on the investigating agents to begin preparing

for  a  warrant  prior  to the  arrest  and  interrogation of

Weiner, Britt, and Rohan on Saturday morning.  The DEA agents

did  not  learn Wihbey's  name or  which condominium  unit he

lived in until Saturday morning.  Moreover, prior to Weiner's

arrest,  the agents could not be sure whether Wihbey would be

at his condo or some other place, nor was there any assurance

that the suspects to be  arrested would cooperate and provide

that crucial information.  The DEA agents were  not obligated

to prepare a warrant application in advance merely because it

                             -12-
                                          12


might have  been foreseeable that the  contemplated arrest of

Britt and  Rohan would lead the  agents to the  source of the

marijuana.   See United States  v. Cresta, 825  F.2d 538, 553
                                                     

(1st Cir.  1987) ("Although probable cause  existed some time

prior  to the  arrests,  this does  not  negate the  rise  of

exigent   factors.";   "Unforeseeability   has   never   been

recognized  as  an  element   of  the  exigent  circumstances

exception .  . . ."), cert. denied, 486 U.S. 1042 (1988).  We
                                              

therefore reject Wihbey's first basis for objection.

               b.  Were the circumstances exigent?
                                                             

          The  magistrate  judge  credited agent  McDonough's

statement that he had doubts  about the credibility of Britt,

Rohan, and Weiner,  and that it  was reasonable to  interview

them  in further  detail  before  proceeding against  Wihbey.

Therefore, it was only sometime after 11:30 a.m., about three

hours after the marijuana buy had begun, that McDonough faced

the crucial decision whether he had time to obtain a warrant.

The magistrate judge also  relied on McDonough's testimony in

finding that (1) it would take  substantially longer than two

hours to obtain  a warrant and (2) that  McDonough's decision

to  forego a warrant was not motivated by his desire to press

ahead with  the investigation of Whitman and  Camyre.  Wihbey

did  not specifically object  to those  recommended findings,

and  even if he had, those findings are not clearly erroneous

in light of  all the circumstances.  Because of  the delay in

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                                          13


Weiner's return to Wihbey, and Weiner's statement that Wihbey

would  be growing  suspicious, we  agree with  the magistrate

judge  and  the district  court  that  the agents  reasonably

feared  that  Wihbey  would   flee,  or  conceal  or  destroy

marijuana evidence before a warrant could be obtained.

          It is well established  that government agents must

act reasonably, based on  the objective facts available, when

deciding that a warrantless  entry is justified: "Whether the

basis for  such authority  exists is  the  sort of  recurring

factual question  to which law enforcement  officials must be

expected  to  apply  their   judgment;  and  all  the  Fourth

Amendment  requires  is  that  they  answer  it  reasonably."

Illinois  v. Rodriguez, 497 U.S.  177, 186 (1990).   We agree
                                  

with  the magistrate judge and the district court that it was

reasonable  for  the  agents  in  this  case  to   judge  the

circumstances exigent and to take action accordingly.

          Although  he  did  not  raise  the  argument below,

Wihbey now  argues that his suspicion could have been allayed

-- and the exigency  averted -- by a  phone call from  Weiner

assuring him that all was  well.  While that may be  true, it

does  not alter  our  conclusion.   It  was well  within  the

reasonable professional judgment of  the agents to choose not

to jeopardize a continuing investigation by  taking measures,

such as a phone call, that might (or might not) alleviate the

exigency.   The telephone  call might  have had the  opposite

                             -14-
                                          14


effect, heightening Wihbey's  suspicion, and inducing him  to

immediately flee, or destroy or conceal evidence.

          We also reject Wihbey's argument that the  exigency

was created  by the DEA agents' investigative  strategy.  The

need for  quick action  arose upon the  agents' determination

that arrestees Rohan, Britt, and Weiner had provided reliable

information  about Wihbey  and  that he  would be  suspicious

because of  any further  delay in  getting back  to him.   We

accept the  magistrate judge's finding that the timing of the

second controlled buy did  not drive the agents'  decision to

forego a  warrant.  And, as  we have said, the  agents had no

duty to  prepare a warrant  application before the  arrest of

Rohan and  Weiner nor to attempt to  allay Wihbey's suspicion

with a phone call.  Wihbey  argues that the agents could have

established surveillance  of his condominium,  without entry,

to prevent Wihbey's flight, but that would not have prevented

the destruction of evidence within.  We see nothing about the

agent's  investigative strategy  that  created the  exigency.

This is not a situation where the agents deliberately created

the exigent circumstances.   The agents had no choice  but to

respond promptly  once they  learned that  Wihbey was  at his

condominium, undoubtedly growing suspicious as he awaited the

overdue  proceeds  of the  busted  transaction.   See  United
                                                                         

States v. Cresta, 825 F.2d at 553.
                            

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                                          15


          For the foregoing reasons,  we affirm the denial of

Wihbey's motion to suppress.

                             -16-
                                          16


B.  Improper Arguments by the Prosecutor
            B.  Improper Arguments by the Prosecutor
                                                    

          Wihbey and  Whitman seek a new  trial because, they

claim,  the prosecutor  in  closing argument  commented  upon

their failure  to testify,  shifted  the burden  of proof  to

them, and vouched for the government's witnesses.

          1.   Comment on Failure  to Testify and  Attempt to
                                                                         

          Shift the Burden of Proof
                                               

          Wihbey  and  Whitman  contend  that  the  following

remark   (hereafter   "Comment   One"),   made   during   the

government's  summation, was  an  improper comment  on  their

failure to testify:

               What I would like to do, however, is
          talk to  you for a few  minutes about the
          three specific charges that are contained
          in the indictment . . . .  
               The  first one, and  I would suggest
          to you  the most  important  one, is  the
          conspiracy  count   and  that  conspiracy
          count  lists, as you  know, six different
          persons -- four of them you heard from --
          Mr.  Britt, Mr.  Rohan,  Mr. Weiner,  Mr.
          Wihbey  and Mr.  Whitman and  Mr. Camyre.
          You've  heard from all of those witnesses
                                                               
          except for obviously  the two  Defendants
                                                               
          who have now been charged.
                                                

(emphasis added).  

          Wihbey asserts that a second remark ("Comment Two")

was also an  improper comment  on his failure  to testify  as

well as an attempt  to shift the burden of proof to him.  The

prosecutor  recounted Wihbey's  post-arrest statement  to DEA

special agent  McDonough that  Wihbey would not  turn in  his

                             -17-
                                          17


source because he was Wihbey's friend, but that he would give

the name of the friend's source.  Then the prosecutor said:

               Now,  if  Mr.  St.  Clair  [Wihbey's
          lawyer] can  stand  up and  explain  away
                                             
          that conversation to you, then you should
          let Bob  Wihbey walk  out of here  with a
          verdict of  acquittal.   But he can't  do
          that, ladies and gentlemen,  because that
          is  not a  conversation that  an innocent
          man,  who's  been falsely  accused, would
          have under those circumstances.
               There's  just  no other  explanation
          except the one that's been  provided from
          the  witness stand by the eight witnesses
          called by the government.

(emphasis added). 

          At  the end  of the prosecutor's  summation, during

which  the prosecutor  made  Comments One  and Two,  Wihbey's

lawyer  asked  to approach  the  bench, but  the  trial judge

ordered him instead  to "move on with it for  now."  Wihbey's

lawyer  therefore   proceeded  with  his   closing  argument;

Whitman's lawyer followed.  After the  prosecutor's rebuttal,

Wihbey and Whitman both moved for a  mistrial, citing Comment

One as an improper  comment on their failure to  testify, and

citing  as improper a third comment.  We assume arguendo that
                                                                    

defense counsel's attempt to  approach, coupled with specific

mention in the mistrial motion, was a sufficient objection to

Comment  One to preserve the  issue for appeal.   We consider

Wihbey's failure  to mention  Comment Two  in the  motion for

mistrial, however, as a failure to object; therefore if there

was an error  in Comment Two, the error was  forfeited and is

                             -18-
                                          18


reviewed for  plain error only.   See  Olano, 113  S. Ct.  at
                                                        

1776-1779.

          Comment by a prosecutor on a defendant's failure to

testify  violates the Fifth Amendment guarantee against self-

incrimination.   Griffin  v.  California, 380  U.S. 609,  615
                                                    

(1965).  A court determines if a prosecutor's remarks violate

Griffin  by  asking "whether,  in  the  circumstances of  the
                   

particular case, the language used was manifestly intended or

was of such  a character  that the jury  would naturally  and

necessarily take  it to be  a comment on  the failure of  the

accused  to testify."   United  States  v. Akinola,  985 F.2d
                                                              

1105, 1111 (1st Cir. 1993)  (quoting United States v. Glantz,
                                                                        

810  F.2d 316,  322 (1st  Cir.), cert.  denied, 482  U.S. 929
                                                          

(1987)).   If we find that a prosecutor has violated Griffin,
                                                                        

we then review for harmless error.  United States v. Hasting,
                                                                        

461 U.S.  499,  508-12 (1983)  (applying  the  constitutional

harmless error analysis established in Chapman v. California,
                                                                        

386  U.S.  18, 24  (1967)).   In  Chapman, the  Supreme Court
                                                     

stated that a  prosecutorial comment  on the  failure of  the

accused  to testify would  not require reversal  if the State

could  show  "beyond  a   reasonable  doubt  that  the  error

complained of  did not  contribute to the  verdict obtained."

386  U.S. at  24.   The Supreme  Court clarified  the Chapman
                                                                         

constitutional  harmless   error  standard  in   Sullivan  v.
                                                                     

Louisiana, 113 S.  Ct. 2078, 2081 (1993), explaining that the
                     

                             -19-
                                          19


inquiry is "not  whether, in  a trial  that occurred  without

error,  a guilty verdict surely would have been rendered, but

whether the  guilty verdict  actually rendered in  this trial
                                                                   

was   surely  unattributable  to  the  error."  (emphasis  in

original).

          A very  different standard is applied  when a party

forfeits  an  error  by  failing to  make  a  contemporaneous

objection, as Wihbey  did with  respect to Comment  Two.   In

that  case, we have the discretion to reverse only for "plain

error," i.e., error  that is "clear"  and "obvious" and  that

was "prejudicial" to  the defendant in that it  "affected the

outcome of the  District Court proceedings."2   Olano, 113 S.
                                                                 

Ct. at 1777-78.  And, we exercise that discretion only if the

plain   forfeited  error  seriously   affects  the  fairness,

integrity, or public  reputation of judicial proceedings;  an

example of such an error is one that causes the conviction of

an actually innocent defendant.  Id. at 1779.
                                                

          As  to  Comment  One,  we  find,  first,  that  the

prosecutor  did not  "manifestly  intend" to  comment on  the

defendants' failure  to testify.   See Akinola,  985 F.2d  at
                                                          

                    
                                

2.  After stating  that a forfeited error  was prejudicial if
it affected the outcome of the proceedings, the Supreme Court
in  Olano  stated:  "There  may  be  a  special  category  of
                     
forfeited errors  that can  be corrected regardless  of their
effect  on the  outcome . .  . ."   The  Court also adverted,
without specificity,  to a class  of errors  "that should  be
presumed prejudicial if the  defendant cannot make a specific
showing of prejudice."  113 S. Ct. at 1778. 

                             -20-
                                          20


1111.    The  context  of  the  comment  indicates  that  the

prosecutor  intended to list  the six persons  charged in the

conspiracy count and to  remind the jury that they  had heard

from four  of the six.  But,  apparently by mistake, he named

Wihbey and Whitman among those who testified.  The challenged

comment appears  to be an  unartful attempt  to correct  that

mistake,  by   reminding  the  jury  that   "of  course"  the

defendants did not testify.  Second, based on the context, we

find that  the jury would not "naturally and necessarily take

[the remark] to be a comment on the failure of the accused to

testify."  See id.  We think it likely that the jury took the
                              

comment the same  way we do, as an attempt  to clarify a slip

of the  tongue.  By saying "of course [the defendants did not

testify]," the prosecutor just  as plausibly has reminded the

jury  that the defendants' silence was  to be expected, i.e.,

that  it is  natural for  a defendant  to exercise  his Fifth

Amendment right.  The remark does not  necessarily imply that

the jury  should draw any negative inference from the failure

to  testify.    "A court  should  not  lightly  infer that  a

prosecutor  intends  an ambiguous  remark  to  have its  most

damaging  meaning or  that  a jury,  sitting through  lengthy

exhortation, will draw that meaning from the plethora of less

damaging interpretations."  United  States v. Lilly, 983 F.2d
                                                               

300, 307 (1st Cir.  1992) (quoting Donnelly v. DeChristoforo,
                                                                        

                             -21-
                                          21


416 U.S. 637, 647 (1974)).  Accordingly, we hold that Comment

One was not a Griffin violation.
                                 

          In contrast to Comment One,  we find Comment Two to

be effectively a comment on Wihbey's failure to testify,  and

that  the  jury likely  understood it  that  way.   Also, the

comment impermissibly  suggested that Wihbey bore  the burden

of proof.  See United States v. Skandier, 758 F.2d 43,  45-46
                                                    

(1st  Cir. 1985)  (holding that  a "how-does-counsel-explain"

argument is a Griffin violation and an impermissible shift of
                                 

burden of proof).   Wihbey, however, forfeited this  error by

failing to  object  or raise  it  as grounds  for  mistrial.3

Although  it was improper, Comment  Two does not  rise to the

level of  "plain error" under the Olano standard.  113 S. Ct.
                                                   

at 1776-79.

          In  light  of  all  the circumstances,  we  do  not

believe that  the comment affected the  outcome or "seriously

affected  the fairness,  integrity,  or public  reputation of

judicial  proceedings."4  Id. at 1779.  First, the judge gave
                                         

                    
                                

3.  We  recognize that,  after  the  prosecutor's  summation,
Wihbey's lawyer  asked "Your honor, may  I approach sidebar?"
We  must assume  he intended  to  object to  the prosecutor's
remarks.  The judge told counsel to  move on with his closing
argument.   Upon  being rebuffed,  counsel did  not state  an
objection or press further  the request to approach.   In any
event, counsel had  the opportunity to  raise Comment Two  as
grounds for  mistrial, but  specified only Comments  One (and
Comment Three, which we discuss further on).

4.  This  improper remark  by  the prosecutor  is not  in the
class of forfeited errors adverted to in Olano, 113 S. Ct. at
                                                          
1778, which are  presumed to be prejudicial without regard to

                             -22-
                                          22


a strong instruction on the defendants'  right not to testify

and the  government's burden  of proof.5   Second, there  was

                    
                                

their  affect on the outcome.  Indeed, if Wihbey had objected
and preserved  the  error, it  would be  subject to  harmless
error  review, which of course  focuses on the  effect of the
error on the outcome.  See United States v. Hasting, 461 U.S.
                                                               
499, 508-12 (1983).

5.  The relevant portions of the jury instruction follow:
               The  law presumes a  defendant to be
          innocent of a crime.  Thus, a  defendant,
          although accused, begins the trial with a
          clean  slate,  with  no evidence  against
          him.
               . . . .
               The  presumption of  innocence alone
          is sufficient to acquit a defendant . . .
          .
               . . . .
               The  burden  is   always  upon   the
          prosecution  to  prove  guilt   beyond  a
          reasonable doubt.
               Now  I told you  two or  three times
          during  this  trial  that the  Defendants
          have  a  constitutional   right  not   to
          testify  or offer  any evidence  on their
          behalf.   If  any  counsel stated  during
          final argument that the Defendant did not
          testify  in an  attempt to  impugn that's
          wrong and  something might be  wrong with
          them, I urge you now to completely ignore
          it and disregard it.
               The law  is clear a  defendant never
          has the burden of proving  his innocence,
          for   the  law   never  imposes   upon  a
          defendant in  a criminal case  the burden
          or  duty  of  calling  any  witnesses  or
          producing any evidence.  The   Government
          has the burden of proving to you beyond a
          reasonable doubt that the  Defendants are
          guilty  of  the  crimes  charged.    This
          burden of proof rests upon the Government
          and it never shifts to the Defendants.
               . . . .
               As  I told  you, the  Government has
          the  burden  of  proving  guilt   of  the
          Defendant  beyond   a  reasonable  doubt.

                             -23-
                                          23


significant  (but  admittedly not  overwhelming)  evidence of

Wihbey's  guilt, enough  that we  find  it unlikely  that any

negative inference  drawn from his failure  to testify tipped

the  scale from  "not  guilty"  to  "guilty."   The  evidence

against  Wihbey  included  co-conspirator  testimony,  police

surveillance   of   pre-transaction  marijuana   sampling  at

Wihbey's condo complex, Wihbey's ownership of the house where

the   forty-pound  transaction  took   place,  marijuana  and

paraphernalia  seized  from   Wihbey's  condo,  and  Wihbey's

incriminating  post-arrest statement.    Given  the  curative

instruction and the  evidence of guilt, we are  not convinced

that the improper remark constituted plain error. 

          2.  Witness Vouching
                                          

          Wihbey and Whitman contend  that the prosecutor, in

his rebuttal, improperly vouched for the accomplice witnesses

who testified  under their  plea agreements.   The prosecutor

                    
                                

          That burden remains  with the  Government
          throughout  the  entire  trial and  never
          shifts to the Defendant.  
               Accordingly,   if   either  of   the
          Defendants  has  not  testified  in  this
          case, and neither have testified  in this
          case,   you   are  not   to   attach  any
          significance  to this  fact, and  you may
          not  in  any  way  consider  this against
          eitheroftheDefendantsinyourdeliberations.
               . . . .
               And further, you should bear in mind
          that  the  law   never  imposes  upon   a
          defendant in  a criminal case  the burden
          or  duty  of  calling  any  witnesses  or
          producing any evidence.

                             -24-
                                          24


analogized the trial evidence  to a "mosaic" made up  of many

"tiles"  that   were   individually  imperfect   if   closely

scrutinized, but which nonetheless would give a clear picture

if  viewed  as  a whole.    After  making  that analogy,  the

prosecutor made the challenged comment ("Comment Three"):

          None  of  these  witnesses  are  perfect.
          None of them have perfect memories.  
               But what they have done is testified
                                                               
          to you  truthfully about what  they knew,
                                                               
          and despite the fact that  there are some
          imperfections in their testimony,  if you
          take  a step  back  from that  individual
          tile, you  will see  that the  Britt tile
          [government   witness]   and  the   Rohan
          [government  witness]  tile  go  hand  in
          hand.

(emphasis added).  There was no immediate objection.  But two

sentences later, the prosecutor ended his rebuttal, the judge

excused  the jury for lunch,  and the defendants  moved for a

mistrial,  arguing  that this  comment  was  improper witness

vouching.  The  question is close whether the defendants have

preserved  the issue for  appeal.   Compare United  States v.
                                                                      

Sepulveda,  15  F.3d 1161,  1186-87  (1st  Cir. 1993)  (where
                     

defendant  did  not  object or  raise  improper prosecutorial

argument  until  motion  for  mistrial  after  conclusion  of

summations,  error forfeited  and  reviewed  for plain  error

only),  cert.  denied 114  S.  Ct. 2714  (1994),  with United
                                                                         

States  v.  Mandelbaum,  803  F.2d 42,  43  (1st  Cir.  1986)
                                  

(objection made after closing  arguments was timely enough to

preserve error for appeal, although it "should have been made

                             -25-
                                          25


earlier)  and United  States v.  Levy-Cordero, 67  F.3d 1002,
                                                         

1008   n.6  (1st  Cir.   1995)  (objection   after  arguments

sufficient  to preserve  issue for  appeal where  parties had

agreed  not to  object during  arguments).   For the  sake of

argument,  we will treat the issue as preserved for appeal as

if a contemporaneous objection had been lodged.

          An  improper argument  to  the jury  that does  not

implicate a defendant's  constitutional rights,  such as  the

witness vouching  that occurred here,  constitutes reversible

error  only   where  the  prosecutor's   remarks  were   both

inappropriate  and  harmful.   See  id.  at  1008.   Improper
                                                   

statements during closing argument are considered harmful if,

given the  totality of the circumstances, they  are likely to

have  affected  the trial's  outcome.6    Id. (citing  United
                                                                         

                    
                                

6.  Prosecutorial arguments that  implicate a  constitutional
right of  the accused  are reviewed under  a higher  standard
than arguments that are  improper, but not  unconstitutional.
See Steven A Childress and Martha S. Davis, Federal Standards
                                                                         
of Review    11.23 (2d  ed. 1992).   We have repeatedly  held
                     
that  an "inappropriate"  comment is  not a  reversible error
unless  it  is likely  to have  affected  the outcome  of the
trial.  See,  e.g., United States  v. Cartagena-Carrasquillo,
                                                                        
70  F.3d 706,  713 (1st  Cir. 1995);  United States  v. Levy-
                                                                         
Cordero, 67 F.3d 1002, 1008 (1st Cir. 1995); United States v.
                                                                      
Ovalle-M rquez,  36  F.3d 212,  220  (1st  Cir. 1994),  cert.
                                                                         
denied, 115 S. Ct.  947 (1995); United States v.  Manning, 23
                                                                     
F.3d 570, 574 (1st Cir. 1994).
          The Supreme Court, however, has held that a comment
on  the failure of the accused to testify is a constitutional
violation, without inquiry as  to its affect on the  outcome.
Griffin v. California, 380  U.S. 609, 615 (1965).   Indeed, a
                                 
Griffin comment  is a reversible error  unless the government
                                                                         
can persuade the appellate court that it was  harmless, i.e.,
                                                                  
did  not affect the outcome.   See United  States v. Hasting,
                                                                        
461 U.S. 499,  507-09 (1982); Chapman v. California, 386 U.S.
                                                               

                             -26-
                                          26


States v.  Manning, 23 F.3d  570, 574 (1st  Cir. 1994)).   In
                              

making  that determination, we  focus on (1)  the severity of

the  prosecutor's   misconduct,  including  whether   it  was

deliberate  or  accidental;  (2)  the context  in  which  the

misconduct  occurred;  (3)  whether the  judge  gave curative

instructions and the likely  effect of such instructions; and

(4) the strength of the evidence against the defendants.  Id.
                                                                         

          Although the prosecutor's statement that "what they

have  done  is  testify  truthfully"  was inappropriate,  our

consideration of these factors  leads us to conclude  that it

was not harmful.   First,  the witness vouching here was not,

on  balance, severe.    The prosecutor  did  not express  his

personal opinion  about the  witnesses' veracity,  see United
                                                                         

States v.  Mejia-Lozano, 829 F.2d  268, 273 (1st  Cir. 1987);
                                   

                    
                                

18, 26 (1967).
          It appears that this  court has on occasion treated
Griffin  comments like  other  improper  comments,  affirming
                   
convictions  where  the  panel  found it  unlikely  that  the
comments affected the outcome.   See, e.g., United States  v.
                                                                     
Glantz,  810 F.2d 316, 320 (1st Cir.), cert. denied, 482 U.S.
                                                               
929 (1987); United States v. Cox, 752 F.2d 741, 744 (1st Cir.
                                            
1985).  These  cases may overstate the  defendant's burden in
demonstrating a Griffin violation.  
                                   
          It  is clear that a  comment on the  failure of the
accused  to testify is a constitutional error, and the burden
rests with the government to show the error harmless beyond a
reasonable doubt, not with the  defendant to show the comment
was  harmful.    See,  e.g.,  Hasting,  461 U.S.  at  507-09;
                                                 
Chapman, 386 U.S. at 26.
                   
          On the  other hand, in cases  where defendants have
challenged  non-constitutional  inappropriate  comments,  the
burden  rests with the defendant to show that the comment was
harmful, i.e., that "under  the totality of the circumstances
they   affected   the   trial's   outcome."   See  Cartagena-
                                                                         
Carrasquillo, 70 F.3d at 713; Levy-Cordero, 67 F.3d at 1008.
                                                      

                             -27-
                                          27


nor did the prosecutor suggest that  he had special knowledge

about   the   witnesses'   credibility,   or   that   special

circumstances such as an oath or a plea agreement ensured the

witnesses'  honesty, see Manning, 23  F.3d at 572,  575.  The
                                            

purpose of the "mosaic" analogy  and the vouching comment was

to concede the existence of imperfections and inconsistencies

in  the  accomplices'  testimony,  and to  argue  that  those

inconsistencies  did not indicate  dishonesty or fabrication.

Although the witness vouching seems to have been intentional,

in  that it  was part  of a clearly  planned oration,  it was

fairly  mild and barely crossed the line of impropriety.  See
                                                                         

United  States v.  Oreto, 37  F.3d 739,  746 (1st  Cir. 1994)
                                    

(prosecutor's argument that "nobody lied" was "mild vouching,

essentially harmless"), cert. denied, 115 S. Ct. 1161 (1995);
                                                

United States  v. Innamorati, 996  F.2d 456,  483 (1st  Cir.)
                                        

(stating that the line between proper argument that a witness

is  credible and  improper vouching  is "often  hazy"), cert.
                                                                         

denied, 114 S. Ct. 409 (1993). The   context  in   which  the
                  

vouching occurred has aspects  that suggest harmfulness,  and

aspects that cut the other  way.  On the one hand,  the final

lines of  the prosecutor's  rebuttal are  thought to  leave a

lasting impression on the jury.  See Manning, 23 F.3d at 575.
                                                        

On the  other hand, the  vouching was to  some extent  a fair

response  to  the  thrust  of the  defense  summation,  which

emphasized that the accomplices were liars and that they were

                             -28-
                                          28


exaggerating,  coloring  their  testimony,  and  telling  the

government what they  wanted to hear.  See  Mejia-Lozano, 829
                                                                    

F.2d  at 268,  274 (prosecutor  given "greater  leeway" where

vouching was "in  response to defense  counsel's inflammatory

statements").

          The  judge  gave  a strong  and  specific  curative

instruction.

               Statements and  arguments of counsel
          are not evidence in the case . . . .  
               If  any  attorney  in  the  case  in
          closing  arguments stated to  you that my
          clients or my  witnesses told the  truth,
          ignore it.  It's  what you determine from
          the witnesses  and  the evidence  in  the
          case, from the point of  view of deciding
          facts, that will control  the credibility
          of all witnesses; it  will be for you and
          only for you to determine.

Although  the curative  instruction was  not contemporaneous,

the  defendants did not object to  the witness vouching until

after  the prosecutor finished his  rebuttal and the jury was

excused for lunch.  The earliest opportunity for the judge to

give  a curative instruction was during the final charge.  We

normally presume that  a jury will  follow an instruction  to

disregard inadmissible evidence or an improper argument.  See
                                                                         

Greer v.  Miller, 483 U.S. 756,  766 n.8 (1987).   We find it
                            

likely that this forceful instruction effectively neutralized

the vouching that occurred here.

          Finally,  the evidence  against Wihbey  and Whitman

was sufficiently strong for us to conclude, after considering

                             -29-
                                          29


the totality of circumstances, that the vouching was unlikely

to affect  the outcome of the trial.  As noted in our earlier

analysis  of Comment  Two,  the evidence  against Wihbey  was

substantial.  The evidence against Whitman was even stronger;

it included  the testimony  of his accomplices  Britt, Rohan,

Camyre,  and Brandt,  pre-arrest tape  recorded conversations

where  Whitman's  accomplices explicitly  discussed Whitman's

role in  the marijuana  distribution plans, and  testimony by

DEA  agents  about   Whitman's  post-arrest  cooperation  and

statements  that  made  his   role  in  a  planned  marijuana

transaction  rather clear.   We  therefore conclude  that the

vouching in this case did not constitute reversible error.

          3.  Motions for Mistrial and New Trial
                                                            

          We    recognize    that   several    incidents   of

prosecutorial  misconduct,  none  of which  would  separately

constitute grounds  for  mistrial, could  have  a  cumulative

impact on the jury sufficient to affect  the trial's outcome.

We review a trial judge's ruling on a motion for a  mistrial,

or for a  new trial,  only for abuse  of discretion.   United
                                                                         

States v. Barbioni, 62 F.3d 5, 7 (1st  Cir. 1995) (motion for
                              

mistrial);  Glantz, 810  F.2d at  320 &  n.2 (motion  for new
                              

trial because of improper  argument).  Although the Assistant

United States Attorney in  this case exceeded the permissible

limits  of proper argument, we cannot say that his action was

deliberate and we  do not believe that the closing arguments,

                             -30-
                                          30


viewed collectively, affected the  outcome or the fairness of

this trial.  For the  reasons set forth in our review  of the

challenged comments,  we hold  that the  trial judge  did not

abuse his discretion in denying the defendants' motions for a

mistrial and for a new trial.

                             -31-
                                          31


C.  Single Conspiracy vs. Multiple Conspiracies
            C.  Single Conspiracy vs. Multiple Conspiracies
                                                           

          The  jury convicted both  Wihbey and  Whitman under

Count I of  the indictment, which charged  a single marijuana

distribution conspiracy among six persons (the two defendants

along with  Britt, Rohan,  Weiner, and  Camyre).   Wihbey and

Whitman argue that the evidence was insufficient to allow the

jury  to  find a  single  conspiracy, and  that  the evidence

showed instead two separate conspiracies.

          The framework for analyzing when a variance between

the conspiracy charged and the conspiracy proven  constitutes

reversible error was set forth in United States v. Glenn:
                                                                    

          (1) Is the  evidence sufficient to permit
          a jury  to  find the  (express or  tacit)
          agreement  that  the indictment  charges?
          (2) If not, is  it sufficient to permit a
          jury, under a proper set of instructions,
          to  convict the  defendant of  a related,
          similar conspiracy?  (3) If so [i.e., the
          answer to  (2) is yes], does the variance
          affect the defendant's substantial rights
          or  does  the   difference  between   the
          charged  conspiracy  and  the  conspiracy
          proved amount to "harmless error?"

828  F.2d 855, 858 (1st  Cir. 1987).   Put differently, "[s]o

long as  the statutory violation  remains the same,  the jury

can convict  even if  the facts  are somewhat different  than

charged  -- so long as  the difference does  not cause unfair

prejudice."  United States  v. Twitty, No. 95-1056, slip  op.
                                                 

at 3  (1st Cir.  Dec. 28, 1995)  (citing Glenn,  828 F.2d  at
                                                          

858). 

                             -32-
                                          32


          This court  has recognized  at least three  ways in

which such  a variance might "affect  the substantial rights"

of the accused.   United States v. Sutherland, 929  F.2d 765,
                                                         

772-73 (1st Cir.), cert. denied, 503 U.S. 822 (1991).  First,
                                           

a  defendant  may receive  inadequate  notice  of the  charge

against him and  thus be  taken by  surprise at  trial.   Id.
                                                                         

Second,  a defendant may be  twice subject to prosecution for

the same offense.   Id.  Third, a defendant may be prejudiced
                                   

by "evidentiary spillover": the  "transference of guilt" to a

defendant   involved  in   one   conspiracy   from   evidence

incriminating defendants in  another conspiracy in  which the

particular defendant was not involved.  Id.  
                                                       

          The question  whether a  given body of  evidence is

indicative of a single  conspiracy, multiple conspiracies, or

no conspiracy at all is ordinarily a matter of fact; a jury's

determination in that  regard is subject  to review only  for

evidentiary sufficiency.   United  States v. David,  940 F.2d
                                                              

722,  732 (1st Cir.), cert.  denied, 502 U.S.  989 (1991), et
                                                                         

al..  In reviewing  the sufficiency of the evidence,  we take
               

the evidence in the light most favorable to the verdict.  Id.
                                                                         

at  730.  We review  de novo the  question whether a variance
                                        

affected a defendant's substantial  rights.  United States v.
                                                                      

Arcadipane, 41 F.3d 1, 6 (1st Cir. 1994).
                      

          Wihbey  and Whitman  assert  that the  evidence was

insufficient  "to demonstrate  that  all of  the alleged  co-

                             -33-
                                          33


conspirators    directed    their    efforts   towards    the

accomplishment of  a common  goal or overall  plan."   United
                                                                         

States v.  Drougas, 748 F.2d 8,  17 (1st Cir. 1984).   But we
                              

find  it unnecessary  to engage in  that factual  inquiry; we

shall assume for the  sake of argument that the  evidence was

insufficient  to  convict either  Wihbey  or  Whitman of  the

charged single  conspiracy, satisfying the first  part of the

tripartite Glenn framework.  See 828 F.2d at 858.  Wihbey and
                                            

Whitman properly  concede,  however, that  the  evidence  was

sufficient  to  prove that  each  participated  in a  related

similar,  but smaller,  conspiracy, and their  arguments jump

directly from the first prong to the third (prejudice) prong.

Specifically, they  concede that the evidence  was sufficient

for  a  rational  juror  to find  agreements  to  traffic  in

marijuana  among  (1) Wihbey,  Weiner,  and  Rohan,7 and  (2)

Whitman, Camyre, Britt, and Rohan.  Thus, the second prong of

Glenn is satisfied.  See id.  Wihbey   and   Whitman   argue,
                                        

however,  for a  new trial  because the variance  between the

single  conspiracy  charged  and  the  multiple  conspiracies

proven  was  prejudicial  to   them  because  of  evidentiary

spillover.    We  therefore proceed  to Glenn's  third prong,
                                                         

making two assumptions.   We assume  first that the  evidence

                    
                                

7.  Although Britt  was arrested along with  Weiner and Rohan
during  the Wihbey-supplied  transaction  at  Wihbey's  Arden
Street  house, Britt  is  not included  in  this first  group
because we are assuming arguendo that there were two separate
                                            
conspiracies.  

                             -34-
                                          34


was insufficient to prove  the single conspiracy charged, and

second,  as  the defendants  concede  and  as ample  evidence

supports,  that there  were  two separate  conspiracies:  (1)

Wihbey  agreeing to  sell 250 pounds  of marijuana  to Rohan,

with Weiner  acting as  Wihbey's agent,  and (2)  Whitman and

Camyre agreeing  to sell Britt and  Rohan thirty-seven pounds

of  marijuana  obtained from  Brandt.   Even  if  the assumed

variance existed between the conspiracy charged and the proof

at  trial, it did not prejudice either Wihbey or Whitman, and

it was therefore  harmless under  the Glenn  framework.   See
                                                                         

Glenn, 828 F.2d at 858.  We explain.
                 

          Wihbey  and  Whitman  argue that  the  variance was

prejudicial  because there  was  "an  improper imputation  of

guilt"  to each of them  from the other's  conspiracy.  After

reviewing  the   trial  record,   we  reject  the   claim  of

prejudicial  evidentiary spillover for the following reasons.

          First,  the   defendants'  briefs  cite   only  two

specific instances of evidentiary spillover.  One instance is

Britt's testimony that Rohan said he had a friend (implicitly

Wihbey)  who  could supply  250  pounds  of marijuana.    But

Rohan's  statements  about  Wihbey  do not  spill  over  from

another  conspiracy in which Wihbey did not take part; on the

contrary, the  evidence clearly showed  that Wihbey conspired

with Rohan.   Therefore, Britt's testimony as to Rohan's out-

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                                          35


of-court  statement was  admissible against  Wihbey as  a co-

conspirator   statement  under   Federal  Rule   of  Evidence

801(d)(2)(E), thus there  was no "spillover" to  Wihbey.  And

as  to  Whitman,  Rohan's   statement  is  probative  of  the

agreement  between  Britt  and  Rohan and  thus  relevant  to

proving  the conspiracy  between Britt,  Rohan, Whitman,  and

Camyre.    The  testimony  was not  "spillover"  because  the

evidence  clearly  showed that  Whitman  and  Rohan were  co-

conspirators,  rendering  the  statement  admissible  against

Whitman under Fed. R.  Evid. 801(d)(2)(E).  Thus, as  to both

Wihbey and Whitman, the cited statement by Rohan was relevant

and independently  admissible without regard to the existence

of the larger conspiracy (which we are assuming arguendo  was
                                                                    

not proven).  See United States  v. O'Bryant, 998 F.2d 21, 26
                                                        

(1st Cir. 1993) (no spillover where evidence was relevant and

independently admissible).

           The other cited instance of  evidentiary spillover

was Britt's testimony  that he and Rohan were  "going to do a

separate  deal" together  (implicitly  with  Wihbey).    That

statement might  be fairly  characterized as spillover  as to

Wihbey,   given  our   assumption  that   the  evidence   was

insufficient   to  tie   Britt  to   the  Wihbey-Rohan-Weiner

conspiracy.   But, even if  Wihbey had been  given a separate

trial, the jury would have properly heard testimony about the

arrest of Britt  and Rohan while buying marijuana from Wiener

                             -36-
                                          36


in Wihbey's Arden Street house.  Thus, it is hard  to see how

there  could  be  any  marginal probative  value  in  Britt's

statement  that  he and  Rohan had  planned  to do  that deal

together.   And, once again, this testimony  is not spillover

as  to  Whitman,  against  whom  it  would  be  relevant  and

independently  admissible, because  the evidence  showed that

Britt, Rohan,  and Whitman  were co-conspirators.   Thus, the

defendants  have  identified only  one  specific  instance of

evidentiary spillover,  which we  find harmless, and  we will

not hypothesize the existence of other instances.

          Second, the  trial judge  gave  a jury  instruction

that cautioned against using spillover evidence:8 

          In  reaching your  verdict, keep  in mind
          that   guilt   is   both   personal   and
          individual.   Your verdict  must be based
          solely upon the evidence  presented about
          each  Defendant.   The case  against each
          Defendant stands or falls upon  the proof
          or lack of  proof against that  Defendant
          alone.  Your verdict  as to one Defendant
          should not influence your decision  as to
          the other Defendant.

The trial judge gave similar instructions again when charging

the jury on the elements of conspiracy and what evidence they

                    
                                

8.  The judge also gave a multiple conspiracy instruction, to
the  effect that the jury  must acquit both  defendants if it
found that the single conspiracy charged did  not exist, even
if it found other  conspiracies.  Thus, the jury  verdict can
be seen  as an effective rejection of the multiple conspiracy
theory.  See United  States v. Sepulveda, 15 F.3d  1161, 1191
                                                    
(1st  Cir.  1993),  cert. denied,  114  S.  Ct. 2714  (1994).
                                            
However,  we have assumed for  the sake of  analysis that the
evidence  was insufficient  to support  that verdict,  and we
have momentarily embraced the multiple conspiracy theory.

                             -37-
                                          37


could consider as proof of a  conspiracy.  These instructions

were aimed at preventing evidentiary spillover, and we do not

readily  assume  that  a  jury  disregards  clear directions.

Greer, 483  U.S. at 766 n.8.   The defendants did not request
                 

any other instruction as to spillover, nor did they object to

this one.

          Third,  Wihbey's  activities   (and  the   evidence

thereof) were quite distinct from  Whitman's; each separately

agreed to supply marijuana  to a middleman (Rohan, at  least,

and perhaps Britt) for resale to the informant DeCastro.  The

question  here  is  whether  evidence about  Wihbey  and  his

conspiracy spilled over to  prejudice Whitman, or vice versa.

Assuming,  as we  are,  two separate  conspiracies, with  the

Wihbey sale  distinct from  the Whitman sale,  the defendants

have not  explained how the  jury could  have found  evidence

from one conspiracy to be particularly probative of the other

conspiracy.   See United States  v. Dworken, 855  F.2d 12, 24
                                                       

n.24 (1st  Cir. 1988)  (evidence  from separate  conspiracies

unlikely  to have spillover effect).  We see little about the

fact that one of the defendants agreed to  sell to Rohan that

makes  it more likely that the other defendant also agreed to

sell to Rohan.  All we are left with is  the possibility that

some  general, non-specific transference  of guilt  must have

occurred.  The appellants have not pressed that argument, and

in  any event we find  such any such  general transference of

                             -38-
                                          38


guilt  in this case to be  harmless under the totality of the

circumstances.  

          Wihbey   also  asserts   that   the  variance   was

prejudicial  in that he was  sentenced for the  250 pounds of

marijuana  he agreed  to  sell Rohan  rather  than the  forty

pounds actually delivered.  We see no merit in that argument.

Drug quantity is  not considered  by the jury  an element  of

either the conspiracy or the possession count,  but is rather

a matter  for the district  court to consider  at sentencing.

See  United States v. Campbell, 61 F.3d 976, 979-80 (1st Cir.
                                          

1995) (no specific quantity need be proven at trial; quantity

typically  relevant  only  at sentencing  stage).   Moreover,

evidence  of  the 250  pound  quantity was  derived  from the

smaller conspiracy of which Wihbey was clearly part, thus his

claim that his sentence was affected by the asserted variance

and  some  associated evidentiary  spillover  is particularly

difficult to fathom.

          "To prevail on a  claim of prejudicial spillover, a

defendant  `must   prove  prejudice   so  pervasive  that   a

miscarriage  of  justice looms.'"    United  States v.  Levy-
                                                                         

Cordero, 67 F.3d  1002, 1008 (1st Cir.  1995) (quoting United
                                                                         

States v. Pierro,  32 F.3d  611, 615 (1st  Cir. 1994),  cert.
                                                                         

denied, 115 S. Ct. 919  (1995)) (citations omitted).  Because
                  

Wihbey and Whitman have  fallen far short of such  a showing,

we conclude  that any variance between  the single conspiracy

                             -39-
                                          39


charged and  the conspiracy  or conspiracies proven  at trial

was  not prejudicial to the defendants and is not grounds for

reversal.

D.  Sentencing Issues
            D.  Sentencing Issues
                                 

          Wihbey and Whitman both contend that the sentencing

judge  made  erroneous  factual findings  material  to  their

sentencing  under the  federal  sentencing  guidelines.   For

sentencing  purposes,   the   government  must   prove   drug

quantities by a preponderance of the evidence.  United States
                                                                         

v.  Sepulveda, 15 F.3d 1161, 1198 (1st Cir. 1993).  We review
                         

the sentencing  court's factfinding  for clear error,  id. at
                                                                      

1196, reversing only if, after reviewing all of the evidence,

we  are left  with the  definite and  firm conviction  that a

mistake has been  made.  United States v. Rust,  976 F.2d 55,
                                                          

57 (1st Cir. 1992).

          1.  Wihbey's Sentence:  Drug Quantity
                                                           

          Wihbey asserts that the sentencing  judge committed

clear error  in determining  the drug quantity  for guideline

sentencing  purposes.    The  commentary  to  the  applicable

guideline provides:

          In  an  offense involving  negotiation to
          traffic  in  a controlled  substance, the
          weight    under    negotiation   in    an
          uncompleted distribution shall be used to
          calculate    the    applicable    amount.
          However, where the  court finds that  the
          defendant did  not intend to  produce and
          was not reasonably  capable of  producing
          the  negotiated  amount, the  court shall
          exclude  from  the guideline  calculation

                             -40-
                                          40


          the  amount that  it finds  the defendant
          did  not intend  to produce  and  was not
          reasonably capable of producing.

United  States Sentencing  Commission,  Guidelines Manual,   
                                                                     

2D1.1, comment. (n.12) (Nov.  1, 1994).  The judge  found the

applicable quantity of marijuana to be 250 pounds, the amount

Wihbey had agreed to sell to Rohan according to the testimony

of  Wihbey's co-conspirators.   Wihbey  points out  that only

forty  pounds changed hands  in the  controlled buy  and less

than  three   more  pounds  were  found   later  in  Wihbey's

condominium.  As the  guideline commentary suggests, we first

examine the evidentiary basis for determining that 250 pounds

was the negotiated  amount, which  as a general  rule is  the

applicable  quantity,   and  then  we  examine   whether  the

exception to the general rule should have been applied.

          The sentencing judge  presided at  trial and  heard

and observed  the testimony  of all  the witnesses, which  we

find sufficient  to support  his drug quantity  finding under

our  deferential standard  of review.   Rohan  testified that

Wihbey agreed  to sell 250 pounds  in fifty-pound increments.

Weiner also testified  that the deal was "for  something like

250 pounds."   Rohan, Britt, and DeCastro  discussed the 250-

pound purchase in  their tape-recorded  conversation.   Britt

testified  that Rohan said his  source had 200  to 250 pounds

available, and the deal would go forward in fifty-pound lots.

                             -41-
                                          41


          Wihbey   argues   that  the   testimony   of  these

cooperating co-conspirators was unreliable.  Our observations

in United States v. Zuleta-Alvarez are applicable here:
                                              

          In  this  case, there  existed sufficient
          indicia of reliability to  avoid reversal
          for clear  error.  First, the testimony .
          .  . relied upon  by the sentencing judge
          was all provided under oath . . . and was
          corroborated  by  the many  witnesses who
          testified  .   .  .  .     Moreover,  the
          sentencing judge was  also the  presiding
          judge during the prior proceedings.  Thus
          the sentencing judge had  the opportunity
          to  observe  the  testimony   and  cross-
          examination of the various  witnesses and
          could   thereby   make   an   independent
          assessment of their credibility.

922  F.2d 33, 36-37 (1st  Cir. 1990), cert.  denied, 500 U.S.
                                                               

927 (1991).   Based on  the testimony at  trial, the  judge's

factual finding that the negotiated amount was 250 pounds was

not clearly erroneous.

          In addition to challenging the  evidentiary support

for the  finding that the  negotiated amount was  250 pounds,

Wihbey  argues that  there was  insufficient evidence  of his

intention and  capability to deliver  that amount.   But that

argument  misses  the  mark;  it  seems  to  be  based  on  a

misreading  of the directive of commentary note 12 to   2D1.1

of the guidelines.

          We have interpreted  application note  12
          as directing  that  the amount  of  drugs
          under negotiation must  be considered  in
          determining   the   applicability  of   a
          minimum  mandatory   penalty  unless  the
          sentencing  court supportably  finds both
                                                               
          that  the  defendant  did not  intend  to

                             -42-
                                          42


          produce   the   additional  quantity   of
          narcotics,   and   that  he   lacked  the
                                      
          capacity to do so.

United  States v.  Muniz,  49 F.3d  36,  42 (1st  Cir.  1995)
                                    

(emphasis  in  original).    In  other  words,  as  the plain

language of  the guideline  comment dictates, the  negotiated

amount applies  unless the  sentencing judge makes  a finding

that the defendant  lacked the intent  and the capability  to

deliver.

          Wihbey  argued  at  the  disposition  hearing  that

because only forty pounds  were delivered and because  he had

no  prior record  of  drug-dealing, he  therefore lacked  the

capability  and  intent  to  deliver 250  pounds.    But  the

sentencing  judge rejected  Wihbey's argument,  and expressly

found that  Wihbey was capable  of producing the  250 pounds;

the  judge did not state the basis for that finding, however.

In our  view, the co-conspirator testimony  noted above about

the 250-pound  deal is somewhat probative  of Wihbey's intent

and capability to produce that amount.  The fact that the DEA

did not find the  remaining marijuana in Wihbey's condominium

does  not prove that  Wihbey was unable or  did not intend to

deliver; obviously,  he may have  arranged to have  the drugs

kept elsewhere, to be  delivered to Arden Street as  the deal

progressed.  Consistent with the clear language of note 12 to

section 2D1.1 of the guidelines, the negotiated amount is the

applicable quantity  unless Wihbey can show  both "no intent"

                             -43-
                                          43


and "no capacity"  to produce  that amount.   The  sentencing

judge found that Wihbey failed to make that showing, and that

finding was not clearly erroneous.

          2.  Whitman's Sentence:  Leadership Role
                                                              

          Whitman  urges that the  sentencing judge committed

clear error in  finding that  he had a  leadership role  over

Camyre justifying  an enhancement under U.S.S.G.    3B1.1(c).

His  argument   is  twofold:  (1)  the   trial  evidence  was

insufficient  to  support  the  leadership  finding, and  (2)

Whitman's youth relative to Camyre and the other conspirators

indicates  that  Whitman was  at  most  a  "co-equal," not  a

leader.   The second  argument is easily  dismissed: although

age often correlates with one's organizational status, common

experience  provides enough counterexamples  to indicate that

there is little probative  value in that correlation.   As to

the  first  argument,  the  evidence in  this  case  strongly

suggests  that  Whitman  did  play a  leadership  role.   The

excerpts  of  Camyre's testimony  cited  in the  government's

brief show  that Camyre  responded to Whitman's  orders, that

Whitman set the  timing of the planned transaction,  and that

Camyre expected a  smaller share of the  profit than Whitman.

Whitman points to no  evidence that suggests a non-leadership

role,  other than  his  age  relative  to  that  of  his  co-

conspirators.  The  judge  who   presided  at  trial  and  at

sentencing  is  in the  best  position to  make  this factual

                             -44-
                                          44


finding.  Our review of the  record finds significant support

for  the judge's  finding, and  there  is certainly  no clear

error.

                             IV.
                                         IV.
                                            

                          CONCLUSION
                                      CONCLUSION
                                                

          For the  foregoing reasons,  the judgments  and the

sentences are affirmed.
                          affirmed
                                  

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                                          45