Opinion for the Court filed by Circuit Judge GINSBURG.
Dissenting Opinion filed by Circuit Judge BORK. GINSBURG, Circuit Judge:This case concerns the scope of the authority Congress accorded to the Secretary of State under the Immigration and Nationality Act of 1952, § 182, 8 U.S.C. § 1182(a)(27) (1982), to deny non-immigrant visas to aliens who wish to visit this country in response to invitations from United States citizens and residents to attend meetings or address audiences here. The district court, granting the government’s motion for summary judgment, held that the specific visa denials at issue were within the State Department’s statutory and constitutional authority. See Abourezk v. Reagan, 592 F.Supp. 880 (D.D.C.1984). We conclude that the district court incorrectly analyzed the statutory construction issue, and that questions of material fact remain. Accordingly, we vacate the judgment of the district court and remand the case for further proceedings consistent with this opinion.
I.
We describe first the statutory complex and, next, the essential facts of the cases presented for review.
The Immigration and Nationality Act of 1952, 8 U.S.C. § 1101 et seq. (1982) (Immigration Act or Act), delegates responsibility for regulating the entry of aliens jointly to the Attorney General, the Secretary of State, and United States consular officials abroad. The Secretary of State has the authority to revoke visas, as well as the general responsibility to supervise the issuance of visas by consular officers. See id. at § 1104; Brief for Appellees at 4. Section 1182(a) of the Act defines the categories of aliens that the government may exclude from this country. Some of these categories deal with the status of the alien, see, e.g., § 1182(a)(28) (aliens who are members of Communist or anarchist organizations); others concern the alien’s activities, see, e.g., § 1182(a)(29) (aliens likely to engage in subversion or espionage); while still others involve the procedural requirements for entry, see, e.g., § 1182(a)(20) (aliens without valid visas and passports).
Subsection (27) of section 1182(a), the provision centrally at issue in this case, directs the exclusion of an alien if the Attorney General has reason to believe that the alien “seek[s] to enter the United States solely, principally, or incidentally to engage in activities which would be prejudicial to the public interest or endanger the welfare, safety, or security of the United States.” Pursuant to State Department policy, when a consular officer abroad receives a visa request from an individual he believes may be ineligible under subsection (27), the officer forwards the request to the *360State Department where the appropriate officials consider it and render binding advice. See 22 C.F.R. § 41.130(c) (1985); Brief for the Appellees at 6-9.1 If the alien is found to be within the subsection (27) classification, his exclusion is mandatory.
Subsection (28) of section 1182(a) also bears importantly on this case and was inadequately evaluated by the district court. This subsection authorizes the exclusion, inter alia, of aliens who are, or at any time have been, “members of ... the Communist Party of the United States, ... the Communist ... party ... of any foreign state, or ... any ... affiliate ... of any such ... party.” 8 U.S.C. § 1182(a)(28)(C) (1982). Unlike subsection (27), subsection (28) does not require the Secretary of State to exclude any alien who meets the stated criteria. If the Secretary recommends a wraiver of ineligibility, then, in the discretion of the Attorney General, the alien may be admitted. See 8 U.S.C. § 1182(d)(3)(A) (1982).
The McGovern Amendment, 22 U.S.C. § 2691 (1982), addresses the Secretary’s implementation of this waiver provision. The Amendment calls upon the Secretary to recommend “the approval necessary for the issuance of a visa” to “any alien who is excludible from the United States by reason of membership in or affiliation with a proscribed organization but who is otherwise admissible to the United States,” unless the Secretary certifies to the Congress that “the admission of such alien would be contrary to the security interests of the United States.” Id. at § 2691(a).
This appeal involves three actions consolidated in the district court; the actions contest the denial under subsection (27) of four visa requests. In Abourezk v. Reagan, No. 84-5673, the plaintiffs are a diverse group of United States citizens — in-eluding members of Congress, university professors, journalists, and religious leaders — who had invited Tomas Borge, the Interior Minister of Nicaragua, to speak to them in this country. See Brief of Plaintiffs-Appellants at 9-11. The Nicaraguan government applied to the United States Embassy in Managua for a non-immigrant visa for Borge. After obtaining an advisory opinion from the State Department, the consular officer informed Borge, in late November 1983, that his visa request had been denied pursuant to section 1182(a)(27) of the Immigration Act. See Brief for the Appellees at 9-11.
The plaintiffs in Cronin v. Shultz, No. 84-5708, are principally groups interested in nuclear disarmament who had invited Nino Pasti to attend and speak at a rally in Boston. Pasti is a former member of the Italian Senate and former general in the Italian armed forces; he is now a peace activist. See Brief of Plaintiffs-Appellants at 8. Pasti is also a participant in the World Peace Council, an organization which the State Department believes to be controlled by the Soviet Communist Party. See World Peace Council: Instrument of Soviet Foreign Policy, Foreign Affairs Note (Department of State, April 1982), reprinted in Joint Appendix at 144-48. The consular officer in Rome found Pasti ineligible to receive a visa under subsection (28). The officer therefore requested an advisory opinion from the State Department on the possibility of a waiver. In response, the Department informed the officer that Pasti was ineligible under subsection (27). The consular officer thereupon notified Pasti, in mid-October 1983, that his visa request had been denied. See Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 163-64.
In City of New York v. Shultz, No. 84-5681, the plaintiffs, the New York City *361Commission on the Status of Women and several women’s studies programs at various universities, had extended speaking invitations to two Cuban women, Olga Finlay and Leonor Rodriguez Lezcano; these individuals have special expertise regarding the status of women and family law in Cuba. See Brief of Plaintiffs-Appellants at 13-14. According to the State Department, both women are members of the Federation of Cuban Women, an organization affiliated with the Communist Party of Cuba. See Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 164-65. Visa applications for the two women were conveyed by diplomatic note from the Government of Cuba. The consular officer in Havana forwarded the visa requests to the State Department and was advised that Finlay and Lezcano were ineligible under subsection (27). He notified them, in early October 1983, that their visa requests had been denied. See Brief for the Appellees at 12-13.2
The plaintiffs filed suit in the district court requesting injunctive and declaratory relief. They argued that the State Department’s exclusion of the aliens invited by plaintiffs to speak here exceeded the Department’s statutory authority under subsection (27) and violated the plaintiffs’ first amendment right to engage in dialogue with these foreign individuals. The district court granted the defendants’ request for a stay of discovery pending their filing of a motion for summary judgment. See Abourezk v. Reagan, No. 83-3739 (D.D.C. Feb. 8, 1984) (order granting motion for extension of time and protective order staying discovery). After consideration of both the public documents and three classified affidavits submitted by the government for the court’s in camera inspection, the district judge granted the defendants’ motion for summary judgment. The court held that the government’s action was within its statutory authority and survived the very limited constitutional scrutiny appropriate in a case concerning the admission or exclusion of aliens. See Abourezk v. Reagan, 592 F.Supp. 880 (D.D.C.1984).
II.
The government raises several preliminary objections to the adjudication of these *362claims. The State Department suggests that the district court lacked jurisdiction over the subject matter, that the plaintiffs have no right to contest the visa denials on statutory grounds, and that the case is moot. We find these contentions insubstantial.
The district court had subject matter competence in this case under both its general federal question jurisdiction, see 28 U.S.C. § 1331 (1982), and its specific jurisdiction over claims arising under the Immigration and Nationality Act, see 8 U.S.C. § 1329 (1982). Section 1329 states that “[t]he district courts ... shall have jurisdiction of all causes, civil and criminal, arising under any of the provisions of this sub-chapter [of the Immigration Act].” Section 1182(a)(27) is part-of the relevant subchapter. The courts have reasonably inferred from this broad grant of jurisdiction that “clear and convincing evidence” of a congressional intent to preclude judicial review is lacking. See Abbott Laboratories v. Gardner, 387 U.S. 136, 141, 87 S.Ct. 1507, 1511, 18 L.Ed.2d 681 (1967) (stating, as the general rule, presumption in favor of judicial review of final agency action, absent “clear and convincing evidence” of congressional intent to the contrary); see, e.g., Karmali v. Immigration and Naturalization Service, 707 F.2d 408, 409-10 (9th Cir.1983) (interpreting § 1329 as grant of jurisdiction over Immigration Act claims); Acosta v. Gaffney, 558 F.2d 1153, 1156 (3d Cir.1977) (same).
We further note, as did the district court, see Abourezk, 592 F.Supp. at 883 n. 10, the Supreme Court’s disposition on the merits in Kleindienst v. Mandel, 408 U.S. 753, 92 S.Ct. 2576, 33 L.Ed.2d 683 (1972). In that case, United States sponsors of a Belgian journalist objected to his exclusion under section 1182(a)(28). Presumably, had the Court harbored doubts concerning federal court subject matter jurisdiction in Mandel, it would have raised the issue on its own motion. See, e.g., Louisville & Nashville R.R. v. Mottley, 211 U.S. 149, 152, 29 S.Ct. 42, 43, 53 L.Ed. 126 (1908).
The government also argues that the plaintiffs’ statutory pleas may not be entertained; this argument blends objections to plaintiffs’ standing and to their ability to state a claim for relief (cause of action). The Immigration Act, we agree, does not itself endow plaintiffs with a right of action.3 But the Administrative Procedure Act, 5 U.S.C. § 701 et seq. (1982) (APA), which complements statutes controlling agency behavior, does. Section 702 of that Act, as explained by the Supreme Court in Association of Data Processing Service Organizations v. Camp, 397 U.S. 150, 152-53, 90 S.Ct. 827, 829-30, 25 L.Ed.2d 184 (1970), authorizes suit by persons who suffer “injury in fact” by reason of the challenged agency action and are “arguably within the zone of interests to be protected or regulated” under a relevant statute.4
Persons who are not materially affected by an agency’s interpretation of the governing, law may not successfully invoke the APA to achieve court review'. See, e.g., Capital Legal Foundation v. Commodity Credit Corporation, 711 F.2d 253, 259-60 (D.C.Cir.1983). But the plaintiffs in this case are hardly strangers to the matter at issue. Unquestionably, they are “aggrieved” by the State Department’s resort to section 1182(a)(27) to keep out people they *363have invited to engage in open discourse with them within the United States. See Brief for the Appellees at 20 (“Refusing visas to their alien invitees undoubtedly inhibits plaintiffs’ rights to communicate with these individuals in face-to-face discussions on American soil.”). The plaintiffs are substantively interested in, and adversely affected by, the Department’s interpretation of subsection (27) as it coexists with subsection (28). They are, as the district court observed, at least arguably within the zone regulated by the statute. See Abourezk, 592 F.Supp. at 884 n. 10.5 They therefore have a cognizable stake in the construction of subsections (27) and (28), a practical interest adequate under section 702 of the APA to secure judicial review of their pleas regarding those provisions. Cf. Capital Legal Foundation, 711 F.2d at 259-60 & n. 17.
Section 701 of the APA states that “[tjhis chapter applies, according to the provisions thereof, except to the extent that — (1) statutes preclude judicial review; or (2) agency action is committed to agency discretion by law.” 5 U.S.C. § 701 (1982). As discussed above, the Immigration Act, far from precluding review, affirmatively provides for it. See supra at 1049-50.6 Furthermore, the statute does not commit to unguided agency discretion the decision to exclude an alien. The Supreme Court has recently interpreted the “committed to unfettered agency discretion” provision as applicable only “if the statute is drawn so that a court would have no meaningful standard against which to judge the agency’s exercise of discretion.” Heckler v. Chaney, — U.S. -, 105 S.Ct. 1649, 1655, 84 L.Ed.2d 714 (1985). Under this interpretation, the Immigration Act emphatically did not commit the decision to exclude an alien to standardless agency discretion; the statute lists thirty-three distinctly delineated categories that conspicuously provide standards to guide the Executive in its exercise of the exclusion power. See 8 U.S.C. § 1182(a) (1982). The statutory language thus channels the Secretary of State’s discretion and, under Heckler v. Chaney, the constraints Congress imposed are judicially enforceable.
In sum, the APA applies to the plaintiffs’ challenges; that Act gives them a right of review extending to the statutory as well as the constitutional propriety of the State Department’s application of section 1182(a)(27) to exclude the aliens invited by plaintiffs to the United States as speakers and meeting participants. We add, fi*364nally, that in the special circumstances of this case, the court has an independent obligation to consider questions of statutory construction. We should so proceed in order to avoid a constitutional confrontation, if it is possible for us to stop short of that point. See Ashwander v. TVA, 297 U.S. 288, 347, 56 S.Ct. 466, 483, 80 L.Ed. 688 (1936) (Brandéis, J., concurring). This consideration strongly supports our attention to the plaintiffs’ nonconstitutional arguments. We should not reach “[the] constitutional question although properly presented by the record, if there is also present [a statutory construction] ground upon which the case may be disposed of.” Id. In rejecting the government’s demand that we confine review to the consistency of the State Department’s actions with the Constitution, we thus observe the “cardinal principle” directing a court first to inquire “whether a construction of the statute is fairly possible by which the [constitutional] question may be avoided.” Id. at 348, 56 S.Ct. at 483 (quoting Crowell v. Benson, 285 U.S. 22, 62, 52 S.Ct. 285, 296, 76 L.Ed 598 (1932)).
Turning to the last of the government’s threshold objections, we hold that the case is not moot. The government asserts that the State Department considers each visa application independently and that the present denials in no way bear on the results of any future application that the excluded aliens might make. See Brief for the Appellees at 26 n. 23; Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 158. However, the reasons for the visa denials offered by the State Department and accepted by the district court indicate that the prospect of future denials of applications by these aliens is a genuine, and not merely a “theoretical[,] possibility.” Murphy v. Hunt, 455 U.S. 478, 482, 102 S.Ct. 1181, 1183, 71 L.Ed.2d 353 (1982).
The State Department’s dominant reasons for the denials that sparked this litigation do not refer to a particular event in the world whose cessation might induce the government to grant visa requests from the aliens whom plaintiffs invited to speak. Instead, the Department cites the continuing status of these aliens as members of organizations or governments hostile to the United States.7 The aliens, whose affiliations apparently have not changed, assert that their interest in entering the United States continues, and the plaintiffs have represented that they still wish to invite these aliens to speak in this country. See Brief of Plaintiffs-Appellants at 9 (Pasti), 13 (Borge), 17 (Finlay and Lezcano). In light of the reasons for the visa denials tendered by the government and relied upon by the district court, these allegations of continuing interest suffice to establish a genuine prospect that the plaintiffs will suffer the same injury in the future. See Nebraska Press Association v. Stuart, 427 U.S. 539, 546-47, 96 S.Ct. 2791, 2796-97, 49 L.Ed.2d 683 (1976).8 We therefore reach the merits of the plaintiffs’ claims.
*365III.
The plaintiffs raise three issues of statutory interpretation. They argue, first, that subsection (27) does not authorize exclusion on the basis of foreign policy concerns, as opposed to issues of “public interest or ... [national] welfare, safety, or security.... ” 8 U.S.C. § 1182(a)(27) (1982). Second, the plaintiffs contend that subsection (27) allows exclusion only if it appears that the alien’s activities in the United States would endanger the public welfare and not if his or her mere presence or entry might do so. And, third, the plaintiffs suggest that the government’s interpretation of subsection (27) violates the statute because it renders subsection (28) superfluous and undermines the restrictions Congress has placed on the Executive’s use of subsection (28). See McGovern Amendment, 22 U.S.C. § 2691 (1982).
Our approach to statutory interpretation is informed by the guidelines the Supreme Court announced in Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 104 S.Ct. 2778, 81 L.Ed.2d 694 (1984). According to Chevron, a court must first examine the statutory provision in question to determine whether Congress had a specific intent with respect to the issue at hand. See id. 104 S.Ct at 2781. This examination should begin with the language of the statute, see Consumer Product Safety Commission v. GTE Sylvania, Inc., 447 U.S. 102, 108, 100 S.Ct. 2051, 2056, 64 L.Ed.2d 766 (1980), but the court may also inspect legislative history and past administrative practice for any light these sources may shed on congressional intent. See, e.g., Chevron, 104 S.Ct. at 2791-92; Rettig v. Pension Benefit Guaranty Corporation, 744 F.2d 133,144-50 (D.C.Cir.1984). If the court finds that Congress had a specific intent with respect to the issue, the court stops there and enforces that intent regardless of the agency’s interpretation. See Chevron, 104 S.Ct. at 2781-82 & n. 9. If, however,the court finds that Congress had no specific intent, the agency’s interpretation should be accorded great deference and invalidated only if it is not a “reasonable accommodation of conflicting policies that were committed to the agency’s care by the statute____” Chevron, 104 S.Ct. at 2783 (quoting United States v. Shimer, 367 U.S. 374, 382-83, 81 S.Ct. 1554, 1560, 6 L.Ed.2d 908 (1961)).
Following these guidelines, we conclude, in agreement with the government and the district court, see Abourezk, 592 F.Supp. at 885-86, that Congress intended foreign policy concerns to rank among the national interests whose protection would justify exclusion of an alien under subsection (27). The broad language of (27) evinces no intent to restrict the kinds' of governmental concerns that would qualify; the subsection speaks of “public interest^] ... welfare, safety, or security” and places no limitation on these encompassing terms. Only an isolationist view patently inconsistent with the reality of our late twem -‘th century world could account for a belief that the “public interest” and the “national welfare” were not dependent, in part, on the effective execution of our foreign policy. The court surely should not adopt on its own initiative such a counter-intuitive interpretation of expansive statutory language, and the plaintiffs have identified nothing in the legislative history or administrative practice to suggest that Congress intended to exclude foreifen policy concerns from consideration under subsection (27). Because the State Department’s interpretation appears fully consistent with congressional intent, we need take this inquiry no further.
The plaintiffs also contend that subsection (27) explicitly authorizes exclusion based only on “activities” in which the alien may be expected to “engage” and not on mere entry or presence. The district court decided this issue for the government. See Abourezk, 592 F.Supp. at 884-85. We conclude that it did so on an inadequate record. We therefore remand for a *366fuller airing of the activity/mere entry question.
The language of the statute, as the Dissent acknowledges, supports the plaintiffs’ interpretation on this issue. Dissent at 9. The provision does not say “persons whose presence in this country would be prejudicial to the interests of the United States are barred from entry.” Rather, subsection (27) makes ineligible for a visa those aliens who “seek to enter the United States solely, principally, or incidentally to engage in activities which would be prejudicial” to United States interests. The specific reference to activities would be superfluous, indeed, misleading, if entry or presence alone could justify exclusion. A familiar canon of statutory construction cautions the court to avoid interpreting a statute in such a way as to make part of it meaningless. See 2A N. Singer, Sutherland Statutory Construction § 46.06 (4th ed.1984). This basic guide and the plain thrust of the language of subsection (27), we emphasize, weigh heavily against thé government’s reading.
The terms Congress employed in other subsections on, exclusion are also consistent with plaintiffs’ interpretation. Section 1182(a) sets out thirty-three separate categories of excludable aliens; this enumeration demonstrates that Congress could and did clearly distinguish status-based categories from conduct-based categories. See supra at 1047. Congress’ undoubted ability to draft categories based only on status, when that is the legislature’s intention, strengthens the inference that the words “to engage in activities” contained in subsection (27) were not put there inadvertently.
The legislative history on this issue, however, is not a prop upon which plaintiffs can rely. It is terse and tugs in more than one direction. The language of section 1182(a)(27) of the 1952 Immigration Act was taken almost verbatim from section 22 of the Internal Security Act of 1950, 64 Stat. 987,1006 (repealed 1952). The Senate Reports on section 22 seem to assume that both existing law and the proposed section allowed exclusion when the very entry of the alien would be prejudicial to the public interest.9 The Conference Committee Report, on the other hand, implies that existing law and section 22 authorize exclusion only on the basis of activities.10
Given the inconclusive state of the legislative history,11 evidence of con*367gressional acquiescence (or the lack thereof) in an administrative construction of the statutory language during the thirty-four years since the current act was passed could be telling. Information about such acquiescence, or the absence of it, would rank as a significant indicator of the legislature’s will. See Zemel v. Rusk, 381 U.S. 1, 8-12, 85 S.Ct. 1271, 1276-1279, 14 L.Ed.2d 179 (1965).12 Unfortunately, evidence on this point was thin when the district court determined to accept the State Department’s interpretation, for that court had stayed discovery pending the government’s motion to dismiss. See Abourezk v. Reagan, No. 83-3739 (D.D.C. Feb. 8, 1984). The only evidence of administrative practice now in the record consists of conflicting assertions in the affidavits of past and present State Department officials and a sparse collection of illustrations. Compare Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 159-60 (present Deputy Assistant Secretary of State), with Affidavit of Leonard C. Meeker, reprinted in Joint Appendix at 252 (former Legal Adviser to the Department of State).
The illustrations — advanced by the State Department as indicative of an administrative practice of excluding aliens under subsection (27) based on entry or' presence alone — include descriptions of three actual visa denials and four examples listed in the State Department Manual. While these illustrations provide some support for the government’s position, they are inadequate to enable a court to determine reliably the nature of the general administrative practice under subsection (27).
The Manual offers the following examples of aliens whose visa applications might properly be denied under (27): an alien who might engage in conspiratorial activity against the United States while in the country; an alien who is known to be a member of a terrorist organization; an alien who is associated with a criminal organization; and an alien official who engaged in physical brutality while in power or was associated with a regime that did so. See Brief of Plaintiffs-Appellants at 37 (citing Foreign Affairs Manual, Pt. II, § 41.91(a)(27), reprinted in 6 C. Gordon & H. Rosenfeld. Immigration Law and Procedure 32-214.18 (1985)). Although the first three examples may be explained in terms of the aliens’ probable activity in the United States, the last example, the government argues, embodies the State Department’s longstanding view that exclusion under subsection (27) is appropriate when the mere entry of the alien would prejudice foreign policy objectives. In that example, the government is concerned, not about the possibility that the official might engage in physical brutality while in the United States, but about the impact of the very admission of such a person on our foreign policy interests. See Brief for the Appellees at 56 n. 42. This fourth example in the Manual may represent an open assertion of the power to exclude under subsection (27) on the basis of entry alone; such an assertion of authority may warrant the implication of an executive policy, even if the policy is only infrequently applied, and may contribute^ to a *368showing of congressional acquiescence in that policy. See Haig v. Agee, 453 U.S. 280, 303, 101 S.Ct. 2766, 2780, 69 L.Ed.2d 640 (1981).
The State Department also offers three instances of actual visa denials that were allegedly based on entry rather than activity and were reported to various members of Congress and committees. In two of the cases the reasons for denial included references to the alien’s anticipated activities in the United States. See Second Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 306, 308.13 In the third case, however, the State Department appears to have applied the fourth example in the Manual: in that case, former Nazi SS officer Otto Skorzeny was denied a visa under subsection (27) for foreign policy reasons. See id. at 306. Thus, there seems to be at least one instance, of which Congress was apprised, in which the State Department actually applied the interpretation of subsection (27) that the government presses in this litigation.
This meager evidence does not demonstrate the kind of consistent administrative interpretation necessary to give rise to a presumption of congressional acquiescence. See Kent v. Dulles, 357 U.S. 116, 128, 78 S.Ct. 1113, 1119, 2 L.Ed.2d 1204 (1958) (holding that “scattered rulings ... not consistently of one pattern” are an insufficient basis on which to impute congressional intent). The examples cited by the State Department, in conjunction with the inconclusive legislative history, however, do cast some doubt on the plaintiffs’ interpretation, an interpretation that otherwise seems indicated by the language of the statute. In order to weigh the relative persuasiveness of the two interpretations, the district court needed more information.14 It should have asked the government to come forward with further examples of the exercise or assertion of power to exclude under subsection (27) on the basis of presence alone; and, in fairness, it should have allowed the plaintiffs sufficient discovery to contest those examples and provide counter-examples.15
Without thus developing a more substantia] record, the district court could not make a secure finding concerning the nature of the administrative practice under subsection (27). And without such a finding, given the inconclusive state of the legislative history and the strength of the plaintiffs’ textual argument, the district court’s decision in favor of the government’s interpretation was premature. We therefore set aside the district court's holding on this issue and remand for the fuller proceedings appropriate prior to resolution of this question of statutory interpretation.
The plaintiffs also contend that the government’s interpretation of subsection (27) violates the statute because it effectively swallows up subsection (28) and *369thereby nullifies the restrictions placed by the McGovern Amendment on the use of the latter subsection. We find this argument persuasive. The Executive may not use subsection (27) to evade the limitations Congress appended to subsection (28).
The McGovern Amendment calls upon the Secretary of State to recommend a waiver of ineligibility, and thereby open the way for admission of an alien who belongs to a subsection (28) organization, unless the Secretary certifies to the Congress that admission of the alien would “be contrary to the security interests of the United States....” 22 U.S.C. § 2691(a) (1982). The district judge in this case found that prejudice to foreign policy did not qualify as a “security interest” within the meaning of the McGovern Amendment. See Abourezk, 592 F.Supp. at 855; accord Allende v. Shultz, 605 F.Supp. 1220,1225 n.2 (D.Mass. April 2,1985). The State Department itself appears to have reached the same conclusion. See Brief of Plaintiffs-Appellants, app. B at 2 (letter from Alvin Paul Drischler, Acting Assistant Secretary of State, to George Bush, President of the United States Senate (Oct. 18, 1983)) (“The result [of the McGovern Amendment] has been that the Secretary of State is effectively precluded from acting in such cases on the basis of legitimate foreign policy factors and considerations.”).
If the government could use subsection (27) to exclude aliens whose entry might threaten our foreign policy objectives simply because of their membership in Communist organizations, then subsection (28) would be made superfluous and the congressional will expressed in the McGovern Amendment would be nullified. Conversely, the restrictions on subsection (28) must not be read in a fashion that would rob subsection (27) of its independent scope and meaning. To preserve the significance of both sections, and the congressional intent that guided their adoption, the two sections must not be homogenized or treated as interchangeable parts. See Weinberger v. Hynson, Westcott & Dunning, Inc., 412 U.S. 609, 633, 93 S.Ct. 2469, 2485, 37 L.Ed.2d 207 (1973) (holding that courts must interpret statutes in such a way as to give effect to all of their provisions).16
The government argues that it has distinguished the two sections by using (27) only when it has a reason for exclusion in addition to the alien’s membership in an organization listed in (28). See Transcript of Proceedings at 38-40, Abourezk v. Reagan, No. 84-5673 (D.C.Cir.Sept. 23, 1985). This standard, however, is inadequate to prevent subsection (27) from overwhelming and obliterating subsection (28) and the McGovern Amendment. A reason that is in addition to the fact of membership but not independent of that fact provides an insufficient bulwark against the possibility of Executive evasion of the will of Congress as expressed in the McGovern Amendment.
For example, the broadest generalization about the character or activities of members of a group would be a reason in addition to the bare fact that a particular alien belonged to that group. But to exclude an alien based on the perceived bent or proclivities of members of a subsection (28) organization would contravene the core purpose of the McGovern Amendment. The Amendment was intended to implement the United States’ promise under the *370Helsinki Accords17 to promote the free flow of people and ideas across national borders. See 22 U.S.C. § 2691(a) (1982); S. Rep. No. 194, 95th Cong., 1st Sess. 13 (1977), U.S.Code Cong. & Admin.News 1977, pp. 1625, 1635. The Amendment fulfills that commitment by assuring that a would-be speaker is not condemned by association with a subsection (28) organization 18 if he is “otherwise admissible.” 22 U.S.C. § 2691(a) (1982). A visa denial based on a generalization about the members of a subsection (28) group surely qualifies as the brand of guilt by association Congress sought to check. No reason particular to this alien or to this moment in time distinguishes such a denial; the denial is appropriate for all members at all times because it is simply a condemnation of the group as a whole.19
We hold that when an alien is a member of a proscribed organization, so that subsection (28) applies, the government may bypass that provision and proceed under subsection (27) only if the reason for the threat to the “public interest[,] ... welfare, safety, or security” is independent of the fact of membership in or affiliation with the proscribed organization. Only if such an independent reason exists will the use of subsection (27) leave intact the congressionally mandated restrictions on subsection (28).20
*371The Dissent finds sufficient reason, separate from the applicants’ membership in proscribed organizations, for upholding the government’s action under subsection (27). This reason consists of alleged affiliations of the visa applicants with particular governments hostile to the United States (the governments of Nicaragua, the Soviet Union, and Cuba). See Dissent at 1069-71. We do not reject affiliation with a particular foreign government as beyond the pale of subsection (27). However, if the alleged government affiliation is presumed because of the applicant’s membership or participation in a subsection (28) organization, we would not count that presumption as independent of the organizational tie. In other words, if all members of a proscribed organization were automatically branded “affiliates” of a certain government, that branding would be no more independent of the fact of membership than the generalization about the character or activities of group members to which we earlier referred. See supra at 1057-58.21 On the other hand, if the State Department pinpoints the alien’s official post, or action as an official representative of a hostile government as the reason for the exclusion under subsection (27) on foreign policy grounds, then the “independent of” organizational membership standard would be met.22
The State Department, however, has so far obscured its position. It mentioned both subsection (28) organizational affiliations and connections between the visa applicants and certain foreign governments. See, e.g., Affidavit of Louis P. Goelz, reprinted, in Joint Appendix at 162-65. But at the same time, the Department volunteered that earlier in the same year (1983), during Borge’s incumbency as Interior Minister of Nicaragua, a visa application for his travel to the United States had been approved. Id. at 166. Similarly, the Department represented that both Finlay and Pasti “have previously received [non-immigrant visas] and travelled to the United States.” Id. In short, the Department *372has never squarely advanced as the rationale for exclusion the applicants’ government ties rather than their subsection (28) organization membership.23 Instead, it has taken an “either/or” stance. See Abourezk, 592 F.Supp. at 888 {in camera affidavits show that applicants were denied entry “because of their personal status as officials of governments or organizations which are hostile to the United States”) (emphasis supplied).
If we were to deem it sufficient, as the Dissent does, for the State Department so to rest on pleas in the alternative, we would shirk our obligation to enforce the congressional direction, which the Dissent acknowledges, see Dissent at 14, to pay genuine heed to the McGovern Amendment. The Department, as the agency charged by Congress with the administration of the statute, of course would retain authority initially to frame criteria for determining when a sufficiently independent reason exists to warrant invocation of subsection (27). The Department’s criteria must be clear enough to allow the courts to fulfill their responsibility to insure that the executive authority respects congressional intent, but the precise contours of the “independence inquiry” should be left, in the first instance, to the sound and expert judgment of the State Department. We therefore remand the three consolidated cases so that both the district court and the government may reevaluate these visa denials without the statutory misinterpretation that casts doubt on their previous analyses.24
IV.
We note our grave concern about the district court’s heavy reliance upon in camera ex parte evidence when it granted the defendants’ motion for summary judgment. That court evaluated the public documentation as “entirely conclusory” and inadequate; it thereupon turned to the classified affidavits and asserted that it found in them information justifying its final disposition. See Abourezk, 592 F.Supp. at 886-87. We caution the district court, in the further proceedings this opinion requires, to make certain that plaintiffs are accorded access to the decisive evidence to the fullest extent possible, without jeopardizing legitimately raised national security interests.
It is a hallmark of our adversary system that we safeguard party access to the evidence tendered in support of a requested court judgment. The openness of judicial proceedings serves to preserve both the appearance and the reality of fairness in the adjudications of United States *373courts. It is therefore the firmly held main rule that a court may not dispose of the merits of a case on the basis of ex parte, in camera submissions. See In re Application of Eisenberg, 654 F.2d 1107, 1112 (5th Cir.1981).
Exceptions to the main rule are both few and tightly contained. Most notably, inspection of materials by a judge isolated in chambers may occur when a party seeks to prevent use of the materials in the litigation. When one side, seeking to block consideration of relevant matter, asserts an evidentiary privilege, the court may inspect the evidence in camera and alone for the limited purpose of determining whether the asserted privilege is genuinely applicable. See id. If the court finds that the claimed privilege does not apply, then the other side must be given access to the information; if the court’s finding is that the privilege does apply, then the court may not rely upon the information in reaching its judgment. See Ellsberg v. Mitchell, 709 F.2d 51, 64 (D.C. Cir.1983), cert. denied sub nom. Russo v. Mitchell, 465 U.S. 1038, 104 S.Ct. 1316, 79 L.Ed.2d 712 (1984). In either case, no party will be faced — as were the plaintiffs in this case — with a decision against him based on evidence he was never permitted to see and to rebut.
Only in the most extraordinary circumstances does our precedent countenance court reliance upon ex parte evidence to decide the merits of a dispute. Our one case in point, Molerio v. Federal Bureau of Investigation, 749 F.2d 815 (D.C.Cir. 1984), involved the state secrets privilege, a privilege not invoked in this case. The government pressed acute national security concerns in Molerio, and we recognized a large risk that an unjust result would eventuate if the case proceeded without the privileged material. See id. at 825. While we allowed court recourse to the confidential information in Molerio, we based that allowance upon proper invocation of the privilege; a demonstration of compelling national security concerns; and public disclosure by the government, prior to any in camera examination, of as much of the material as it could divulge without compromising the privilege. In addition, the plaintiff in Molerio had been accorded considerable discovery of non-privileged materials. See id. at 819; see also Ellsberg, 709 F.2d at 63-64.
We mention finally a third class of cases in which in camera inspection may occur: exceptions to the main rule specified by statute. The prime current example is the Freedom of Information Act, 5 U.S.C. § 552 (1982). Even in administering such legislation, however, we have been vigilant to confine to a narrow path submissions not in accord with our general mode of open proceedings. See, e.g., Vaughn v. Rosen, 484 F.2d 820, 827-28 (D.C.Cir.1973), cert. denied, 415 U.S. 977, 94 S.Ct. 1564, 39 L.Ed.2d 873 (1974) (requiring the government to create a public index listing privileged documents and providing explanations of the claim of privilege). No statutory scheme permitting closeted inspection of evidence is implicated in this case.
In sum, we expect the district court, on remand, to be mindful of the tight boundaries set in Molerio and of the overriding importance of assuring plaintiffs’ receipt of the most complete information and explanation permissible.
V.
The Executive has broad discretion over the admission and exclu'-’on of aliens, but that discretion is not boundless. It extends only as far as the statutory authority conferred by Congress and may not transgress constitutional limitations. It is the duty of the courts, in cases properly before them, to say where those statutory and constitutional boundaries lie.
Congress, in the legislation at issue, has specified categories of excludable aliens and has qualified the application of one of those categories through the passage of the McGovern Amendment. The State Department must respect the restraints Congress imposed. The district court’s conclusion that the congressionally prescribed boundaries had not been transgressed was insufficiently grounded; the court proceed*374ed to judgment without the exploration of administrative practice necessary to an informed decision and it did not adequately advert to the relationship between two statutory provisions. We therefore vacate the district court’s judgment. We remand the three consolidated cases for reexamination of the visa denials in question to insure that the challenged government action is within the statutory and constitutional authority of the State Department.
Judgment vacated and cases remanded for proceedings consistent with this opinion.
. Routine name checks are ordinarily made in these cases through United States intelligence agencies. The State Department has acknowledged that "no recommendations were received from the Department of Justice or any of its components” regarding the visa requests involved in this litigation. Affidavit of Lawrence S. Eagleburger, reprinted in Joint Appendix at 140-41 (affidavit also acknowledges that information supporting visa denials for foreign policy reasons often includes "data and analyses from the United States law enforcement and intelligence communities”).
. On October 4, 1985, acting pursuant to § 212(f) of the Immigration Act, 8 U.S.C. § 1182(f) (1982), President Reagan issued a proclamation suspending the entry into the United States of officers or employees of the Cuban government or the Cuban Communist Party. See Proclamation No. 5377, 50 Fed.Reg. 41329 (1985). If this Proclamation covers Fin-lay and Lezcano, the President's directive might constitute an independent intervening cause for future exclusions, and thus render the City of New York case moot. See Los Angeles v. Davis, 440 U.S. 625, 631, 99 S.Ct. 1379, 1383, 59 L.Ed.2d 642 (1979). The current record, however, is inadequate to enable us to determine, dispositively, whether the October 4, 1985, Proclamation would bar the entry of these women. Compare Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 164-65 (stating that Finlay is an official of the Cuban Communist Party and a member of the National Committee of the Federation of Cuban Women and Lezcano, an official of the Federation of Cuban Women), with Affidavit of Olga Finlay, reprinted in Joint Appendix at 216 (stating that the affiant is not a member of the Cuban Communist Party and that the Federation of Cuban Women is not an instrumentality of the Cuban government or the Communist Party) and Affidavit of Leonor Rodriguez Lezcano, reprinted in Joint Appendix at 245 (same). We decline to decide this mootness issue on the scant record before us. The same issues are raised by all three consolidated cases; a finding that City of New' York has become moot would not relieve this court of the responsibility to decide those common issues. We therefore leave the question of the impact of the President's Proclamation to the district court on remand.
We note, however, that the issuance of this Proclamation provides support for one of the plaintiffs’ arguments: even if the court were to find that subsection (27) cannot be applied to bar aliens whose mere entry would threaten United States foreign policy interests, the Executive would not be helpless in the face of such a threat. He may act pursuant to section 1182(f) to suspend or restrict "the entry of any aliens or any class of aliens" whose presence here he finds "would be detrimental to the best interests of the United States.” The President's sweeping proclamation power thus provides a safeguard against the danger posed by any particular case or class of cases that is not covered by one of the categories in section 1182(a). See Brief of Plaintiffs-Appellants at 40-42. Thus, we need not reject, avoid, or augment the formulation Congress adopted in subsection (27) in order to preserve the President’s potency in this area. Cf. Dissent at 1063-64.
. The Immigration Act and related regulations provide explicitly for the participation of United States family members or employers in visa applications by certain aliens to whom they are connected. See 8 U.S.C. §§ 1151-1154 (1982) (immediate relative petitions); 8 C.F.R. § 204 (1985) (same); 8 C.F.R. § 212.8 (1985) (employer petitions). The plaintiffs in this case, however, are neither family members nor employers of the aliens in question. Therefore, they have no right to participate in the administrative process, and no attendant claims for relief, by virtue of these provisions. Nor does any other provision of the Immigration Act explicitly or implicitly authorize the claims in suit. See Cort v. Ash, 422 U.S. 66, 78, 95 S.Ct. 2080, 2087, 45 L.Ed.2d 26 (1975).
. Section 702 affords a right of review to "[a] person suffering a legal wrong because of agency action, or [who is] adversely affected or aggrieved by agency action within the meaning of a relevant statute." 5 U.S.C. § 702 (1972).
. The McGovern Amendment, see supra at 1048, adds force to the position that plaintiffs suffered an injury that arguably falls within the zone of interests of the relevant law. See infra at 1057-58.
. The government cites Block v. Community Nutrition Institute, 467 U.S. 340, 104 S.Ct. 2450, 2456, 81 L.Ed.2d 270 (1984), as support for the proposition that a history of judicial construction barring review and congressional acquiescence in that construction may override the general presumption favoring review. That proposition, while true, is irrelevant to this case. Unlike the statute in Block, the statute in this case explicitly provides for judicial review. See Block, 104 S.Ct. at 2457. To override the language of a statute, indirect evidence of congressional intent, such as acquiescence in judicial construction, must be strong. Cf. Consumer Product Safety Commission v. GTE Sylvania, Inc., 447 U.S. 102, 108, 100 S.Ct. 2051, 2056, 64 L.Ed.2d 766 (1980) ("Absent a clearly expressed legislative intent to the contrary, [statutory] language must ordinarily be regarded as conclusive.”). Moreover, the Block rule is inapplicable to this case because there exists no longstanding judicial practice of refusing to review claims like those raised here. Cf. Block, 104 S.Ct. at 2454-56 (holding that statute precludes judicial review of consumers' claims although it allows review of milk handlers' claims). This case involves claims by United States citizens rather than by aliens, unlike Karmali v. Immigration and Naturalization Service, 707 F.2d 408 (9th Cir.1983); claims concerning the decisions of State Department officials rather than consular officers abroad, unlike Castaneda-Gonzalez v. Immigration and Naturalization Service, 564 F.2d 417, 428 n. 25 (D.C.Cir.1977); and statutory claims that are accompanied by constitutional ones. The defendants have not produced a single case, and the court is aware of none, in which this kind of claim was found to be outside the province of the federal courts. On the contrary, in a case specifically addressing this type of claim, the Third Circuit found that the APA applied and the court reviewed the merits of the claim. See Acosta v. Gaffney, 558 F.2d 1153, 1156 (3d Cir.1977).
. This characterization of the government's reasons may be gleaned from publicly available documents. See Affidavit of Lawrence S. Eagle-burger, reprinted in Joint Appendix at 141-43 (noting the membership or affiliation of each excluded alien); Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 162-65 (same); see also Abourezk, 592 F.Supp. at 888 (giving a general description of the reasons stated in the classified affidavits). This court has also examined the reasons offered in the in camera affidavits; they do not decrease our concern over the inaccuracy of the State Department’s public representations that these visa denials do not in any way forecast the results of a future application.
. In addition, the plaintiffs assert that they are suffering a present and continuing harm in the form of the "chill" that the challenged State Department policy places on their first amendment interest in hearing foreign speakers. United States audiences are reluctant to extend invitations to foreign speakers, plaintiffs urge, for fear that the aliens may be subjected to the embarrassment of being denied a visa on the ground that they pose a danger to the public welfare. Similarly, the alien invitees may be unwilling to accept invitations when the price is to submit to such "ideological scrutiny." See Brief of Amici Curiae American Association of University Professors et al. at 12-13 (presenting examples of chilling effect). In the first amendment area, such "chill” has long been recognized by the courts as a harm independent from the actual application of the challenged statute. See Thornhill v. Alabama, 310 U.S. 88, 97, 60 S.Ct. 736, 741, 84 L.Ed. 1093 (1940) ("It is not merely *365the sporadic abuse of power by the censor but the pervasive threat inherent in its very existence that constitutes the danger to freedom of discussion.”).
. The Senate Reports both state that
[u]nder existing law, among the excludable aliens are certain aliens who seek to enter the United States whose entry would be prejudicial to the public interest or would endanger the safety of the United States. The committee has broadened this class of excludable aliens to include those aliens who seek to enter the United States to engage in activities which would endanger the welfare of the United States.
S.Rep. No. 2230, 81st Cong., 2d Sess. 5 (1950); S. Rep. No. 2369, 81st Cong., 2d Sess. 10 (1950).
. The Conference Committee Report states that the relevant section
provides for the exclusion from the- United States of aliens seeking to enter for the purpose of engaging in activities which are prejudicial to the public interest and dangerous to the welfare or safety of the United States, whether or not such aliens seek to enter the United States solely, principally, or incidentally for such purpose. Existing law merely provides for the exclusion of aliens if the Attorney General knows or has reason to believe that such aliens are seeking to enter the United States to engage in activities which would endanger the public safety of the United States.
H.R.Rep. No. 3112, 81st Cong., 2d Sess. 54 (1950), U.S.Code Cong.Serv. 1950, pp. 3886, 3906.
.The Dissent finds strongest support for the State Department’s reading in the legislative history of a bill enacted in 1941 containing a prescription from which subsection (27) was later derived. Dissent at 1065-66. We do not find the history of the earlier formulation as clear as the Dissent contends it is. On the contrary, one searches all the legislative history in vain for an illustration homing in on the question at issue.
Thus, one can only speculate on what the legislative report participants had in mind when they made their seemingly interchangeable references to "entry” and "activities.” Conceivably, as the Dissent presumes, they believed "activity” embraced the “act” of entry. Or, they may have understood “entry” to implicate activities likely to be pursued upon admission. At least as plausibly, their word choices were casual and inadvertent, not motivated or informed by the precise consideration at issue in the instant cases.
In sum, we think it plainly wrong as a general matter, and in this case in particular, to regard *367committee reports as drafted more meticulously and as reflecting the congressional will more accurately than the statutory text itself. Committee reports, we remind, do not embody the law. Congress, as Judge Scalia recently noted, votes on the statutory words, not on different expressions packaged in committee reports. Hirschey v. FERC, 111 F.2d 1, 7-8 & n. 1 (D.C. Cir.1985) (Scalia, J., concurring).
. There is no possibility of congressional acquiescence in a longstanding judicial construction. The parties have uncovered only two court cases, in addition to this one, concerning the scope of subsection (27). In El-Werfalli v. Smith, 547 F.Supp. 152 (S.D.N.Y.1982), the court held that a Libyan student seeking to enter the United States in order to study airplane maintenance was properly excluded under subsection (27). While such study does not rise to the level of subversive activity, it clearly constitutes an “activity” exceeding mere presence. In Allende v. Shultz, 605 F.Supp. 1220 (D.Mass.1985), the court did not reach this precise issue because it held the government's reasons for exclusion inadequate on other grounds. See infra note 16. Thus, judicial opinions provide no grounding for the State Department’s interpretation.
. In 1959, 1961, and 1962, the State Department refused a visa to Thomas W.I. Liao, the self-appointed leader of a movement to establish an independent Formosa. The Department found that there was "a clear incompatibility between Mr. Liao's projected activities while in the United States and our foreign policy objectives with respect to Taiwan and the Republic of China.” Second Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 306. In July of 1964, the Department also denied a visa to Mfne. Ngo Dinh Nhu, the sister-in-law of the late Prime Minister of Vietnam, on the ground that “her expected activities would only serve as a demoralizing influence on the people and Government of Vietnam,” which the United States was committed to supporting. Id. at 308.
. The Dissent suggests, and we acknowledge, that such information may be difficult to find or inconclusive. See Dissent at 1067-68. Given this record, however, one can only offer guesses, bets, or suspicions about the existence or weight of such evidence. We do not think it proper to prejudge this issue on a barren record and thereby short-circuit the inquiry into congressional intent. The district court, upon fuller consideration, may find the evidence of congressional acquiescence insufficient in quantity or quality, but that judgment, we think, should be made after an examination of the available evidence, not before.
.We note in this regard that the government has named a few persons to whom visas were denied, allegedly under the authority of subsection (27), and has not suggested that any privilege would shield a further listing of cases in point.
. The district court in Allende v. Shultz, 605 F.Supp. 1220 (D.Mass.1985), adopted this view. Finding it "unnecessary ... to scrutinize the parameters of subsection (27),” the court recognized that traditional principles of statutory construction required that "[a]mong the classes of aliens to which subsection (27) does not apply are those which fall squarely within the ambit of one of the other thirty-two statutory categories____” Id. at 1224. "Because subsection (28) directly encompasses Mrs. Allende’s membership in [two communist organizations],” the court held that "her affiliation with these organizations is not, in itself, a 'facially legitimate and bona fide’ reason for her exclusion within the meaning of subsection (27).” Id. at 1225 (quoting Kleindienst v. Mandel, 408 U.S. *370753, 770, 92 S.Ct. 2576, 2585, 33 L.Ed.2d 683 (1972)).
. Final Act of the Conference on Security and Co-Operation in Europe, Aug. 1, 1975, Dep’t of State Pub. No. 8826 (Gen.For.Pol.Ser. 298), reprinted in 14 I.L.M. 1292 (1975).
. Nothing in our analysis inhibits the State • Department from using a group affiliation to deny visas to members of terrorist groups, see Manual, supra at 20, or organized crime syndicates, see id. The McGovern Amendment applies only to the organizations specifically proscribed by the Act and, of the thirty-three categories of excludable aliens, only subsection (28) specifically addresses membership in or affiliation with an organization as the basis for exclusion. The organizations proscribed in (28) are Communist and anarchist groups. See 8 U.S.C. § 1182(a)(28) (1982).
. The government has offered no evidence of congressional acquiescence in an administrative practice that would alter our view that the legislature did not cast subsections (27) and (28) as interchangeable parts. Indeed, when asked at oral argument, government counsel was unable to identify any case other than this one and Allende, 605 F.Supp. 1220 (D.Mass.1985), in which subsection (27) was used to deny a visa to an alien to whom subsection (28) applied. See Transcript of Proceedings at 41-42, Abourezk v. Reagan, No. 84-5673 (D.C.Cir. Sept. 23, 1985).
. The Dissent argues that the McGovern Amendment retains its vitality even without the interpretation we embrace today. Without the McGovern Amendment, subsection (28) would pose a presumptive bar to the entry of any member of a Communist organization. The Dissent points out that the State Department has not explicitly revived that policy of general exclusion, it has simply determined to exclude members of those subsection (28) organizations it believes to be affiliated with certain foreign governments. See Dissent at 1072. The Dissent makes the practical prediction that not all subsection (28) organizations will be so affiliated, and therefore finds that the McGovern Amendment is left intact.
The Dissent’s analysis, we believe, is flawed in this respect: the issue turns not on practical predictions but on the possession of power. If the State Department’s current policy entails the power to achieve precisely the same results as under subsection (28) before the McGovern Amendment, then it is small virtue that those results now can be achieved without explicitly reviving a policy of ideological exclusion. Under the Dissent’s interpretation of the statute, the State Department may exclude someone simply by pointing to her membership in a subsection (28) organization; the additional, conclusory assertion that the organization has certain affiliations provides no safeguard because the assertion may be offered in every case and cannot be questioned or reviewed by any court. See Dissent at 1070 n. 4. A statement thus walled off from any effective challenge scarcely qualifies as a reason.
The State Department therefore remains armed with the power to exclude all members of subsection (28) organizations for foreign policy reasons. That is precisely the power the McGovern Amendment was designed to revoke. We conclude that the State Department’s approach does not leave the McGovern Amendment intact and that the more stringent standard we adopt is necessary to effectuate congressional intent.
This standard will also leave intact the independent scope of subsection (27). For example, all four of the illustrative applications of (27) in the State Department’s Manual, see supra at 1055, would still be appropriate under our view of the respective provinces of the two clauses.
. The Dissent suggests that this interpretation creates a "favored entry status" for communists: members of organizations not included in subsection (28) can be excluded on foreign policy grounds under subsection (27) simply because their membership links them to a hostile foreign government, but members of subsection (28) groups cannot. See Dissent at 1072. The McGovern Amendment was, however, a response to the historically disfavored position of subsection (28) organizations. The imaginary Council in the Dissent’s hypothetical never suffered from the explicit ideological exclusion embodied in subsection (28) or the extreme and general public hostility that motivated Congress to include that subsection in the Act in 1952. See generally The Meaning of McCarthyism (E. Latham ed. 1965) (a collection of essays on the causes and effects of McCarthyism).
Congress could reasonably have believed that these special disabilities warranted special precautions where subsection (28) organizations were concerned. If a member of a subsection (28) group poses a threat to national security, she stands on the same footing as a similarly threatening member of any other type of group. But where no such threat is present, Congress determined that a close look is in order, in fidelity with the Helsinki Accords, see supra at note 17, before the United States excludes members of subsection (28) organizations. This closer look insures that the longstanding practice of excluding such persons under subsection- (28)— which codified an historically demonstrated animosity — does not taint exclusions after the McGovern Amendment’s repudiation of that animosity.
. The Dissent describes our "independent reason” safeguard as ineffective, entirely vulnerable to the power the Attorney General holds: he may deny a visa under subsection (28) despite the Secretary’s recommendation of entry. See Dissent at 1073-74. Foreign policy, however, is the Secretary’s specialty; it is not the Attorney General’s customary field. Our decision, it is true, in no way prevents the Attorney General from venturing into the foreign policy domain. But we expect, as we assume Congress did when it adopted the McGovern Amendment, that instances in which the Attorney General rejects action in the foreign policy realm that the Secretary recommends will be extraordinary. In sum, Congress apparently designed the Amendment with the traditional division of responsibility between the two executive departments in full view. Such divisions of responsibility, and the closely kept balance of powers that results from them, have long been regarded as an effective check on the disingenuity of individual public officials. See The Federalist No. 51, at 344-45 (J. Madison) (P. Ford ed. 1898). So long as the traditional allocation of responsibility between the two departments is maintained, Congress’ action and our endeavor to assure its vitality should not be exercises in futility.
. Perhaps the State Department has shied away from this rationale in part because it is problematic whether all of these aliens have independent affiliations with hostile governments. Tomas Borge clearly has such a connection: he holds a cabinet post in the Nicaraguan government. But some of the other speakers in this case lack such an unambiguous connection to a hostile foreign government. For example, if Nino Pasti has any governmental affiliation, it is to the Italian government, in which he served as both a Senator and a General in the armed forces. See Affidavit of Louis P. Goelz, reprinted in Joint Appendix at 163. Of course, no one — neither the State Department nor the Dissent — argues that Pasti was, or should be, excluded because of a connection to the government of Italy. Instead, the suggestion is that Pasti’s affiliation with the Soviet government warrants his exclusion. This alleged affiliation consists, however, solely and simply in Pasti’s participation in the World Peace Council, an organization clearly covered by subsection (28) and the McGovern Amendment. See Affidavit of Louis P. Goelz, reprinted .n Joint Appendix at 163. Similarly, Leonor Rodriguez Lezcano, so far as the current record indicates, has never held public office in Cuba or actively represented the government of that country. Her affiliation with the Cuban government apparently arises, according to the State Department, because of her participation in the Federation of Cuban Women, a subsection (28) organization. See id. at 164-65. Thus, we do not now comprehend any basis for claiming that these two visa applicants have governmental affiliations independent of their membership in subsection (28) organizations.
. Because we find that questions remain concerning the State Department’s compliance with the statutory requirements, we do not reach the plaintiffs' constitutional claims. We therefore express no opinion about the section of the district court opinion devoted to the analysis of those claims.