Appellant Hoffman was convicted in the Court of General Sessions on the charge he “knowingly cast contempt upon the flag of the United States by publicly mutilating, defacing and defiling” it, in violation of 18 U.S.C. § 700, entitled “Desecration of the flag of the United States.”1 After waiving his right to a trial by jury he was tried by the judge. He was sentenced to a $100 fine or imprisonment for thirty days. The District of Columbia Court of Appeals affirmed the conviction, Hoffman v. United States, 256 A.2d 567 (1969). and we allowed this appeal.2
The Government’s case in chief consisted of a brief oral statement to the court by the Assistant United States Attorney embodying facts which the defense stipulated represented the basis for the charge. It appears that on the morning of October 3, 1968, in response to a subpoena to testify before the Committee on Un-American Activities of the House of Representatives, appellant, accompanied by a number of other persons, approached the Cannon Office Building where the Committee met.3 Three Capitol Hill policemen observed appellant wearing a shirt which, while not actually a flag of the United States, resembled the flag sufficiently to come within the terms of the statute.4 See note 1 swpra. Pinned to the shirt were two buttons, one bearing the legend, “Wallace for President, Stand Up for America,” the other saying, “Vote Pig Yippie in Sixty-Eight.” The officers arrested appellant “after confirming their conclusion with their fellow officers” that the shirt “closely resembled the symbols and designs of the American flag.”
At the conclusion of the Government’s case as thus presented, the court denied appellant’s motion to dismiss the charge for failure to prove a prima facie case under the statute. Appellant then testified in his defense. He said:
* •» * j haci a shirt that resembled the American flag. I wore the shirt because I was going before the Un-American Activities Committee of the House of Representatives, and I don’t particularly consider that committee American in the tradition as I understand it, and I don’t consider that House of Representatives in the tradition that I understand it, and I wore the shirt to show that we were in the tradition of the founding fathers of this country, and that that committee wasn’t. That’s why I wore it.5
At the conclusion of his defense appellant again moved for acquittal, on the ground the Government failed to prove guilt beyond a reasonable doubt, and also on the grounds the statute is unconstitutional as applied to his particular *228conduct and, more generally, is unconstitutional on its face as an infringement of freedom of speech protected by the First Amendment.6
On this appeal appellant reasserts his constitutional claims. He also contends that his conduct in any event did not come within the condemnation of the statute. We agree with the latter position and accordingly do not reach the constitutional questions, though we have little doubt that the interest of the people in the flag of the United States enables Congress by appropriate legislation to protect it from desecration. See Opinions of Chief Justice Warren, Mr. Justice Black, Mr. Justice White, and Mr. Justice Fortas, in Street v. New York, 394 U.S. 576, et seq., 89 S.Ct. 1354, 22 L.Ed.2d 572 (1969). These were dissenting opinions, but the majority opinion of the Court did not dispute the position of the dissenting Justices that a state interest exists in prohibiting desecration of the flag of the United States. Cf. Halter v. Nebraska, 205 U. S. 34, 27 S.Ct. 419, 51 L.Ed. 696 (1907).
The right of symbolic expression of opinion, not excluded from the protection of the First Amendment, is involved in this case. See Tinker v. Des Moines Independent Community School District, 393 U.S. 503, 89 S.Ct. 733, 21 L.Ed.2d 731 (1969); West Virginia State Bd. of Educ. v. Barnette, 319 U.S. 624, 63 S.Ct. 1178, 87 L.Ed. 1628 (1943); Thornhill v. Alabama, 310 U.S. 88, 60 S.Ct. 736, 84 L.Ed. 1093 (1940); Stromberg v. California, 283 U.S. 359, 51 S.Ct. 532, 75 L.Ed. 1117 (1931). It follows that in order for this statute to avoid possible conflict with the Amendment, the curtailment of expression goes no further than the language of the statute clearly requires. See United States v. Rumely, 345 U.S. 41, 45, 73 S. Ct. 543, 97 L.Ed. 770 (1953), and cases cited therein. The legislative history of the present statute demonstrates that Congress was aware of the problem and sought to avoid claims of infringement of the guarantees of the First Amendment by employing in the operative part of the statute language of limited and narrow meaning.
The Senate and House Committees on the Judiciary, in recommending passage of the legislation, filed Reports with their respective branches of Congress explaining why they deemed the Bill to avoid First Amendment invalidity. The Senate Report states:
* * * The bill does not prohibit speech, the communication of ideas, or political dissent or protest. The bill does not prescribe orthodox conduct or require affirmative action. The bill does prohibit public acts of physical dishonor or destruction of the flag of the United States. The language of the bill prohibits intentional, willful, not accidental or inadvertent public physical acts of desecration of the flag. Utterances are not proscribed. Specific examples of prohibited conduct under the bill would include casting contempt upon the flag by burning or tearing it and by spitting upon or otherwise dirtying it. There is nothing vague or uncertain about the terms used in the bill.
S. Rep. No. 1287, 90th Cong., 1st Sess. 3; see H. R. Rep. No. 350, 90th Cong., 1st Sess. 3, worded in like manner. Both Reports disclose that the statutory language, see note 1 supra, was suggested by Attorney General Ramsey Clark, should Congress decide to enact such legislation, as possibly avoiding First Amendment difficulty. He advised the Committees that the scope of protection of the Amendment, explained by Supreme Court decisions in such cases as West Virginia State Bd. of Educ. v. Barnette, supra, Stromberg v. California, supra, and Baggett v. Bullitt, 377 U.S. 360, 84 S.Ct 1316, 12 L.Ed.2d 377 (1964), to which we now add Street v. New York, supra, is not so confined as *229might have been indicated by the earlier case of Halter v. Nebraska, supra.7
The words used in the statute and the accompanying legislative history thus preclude giving the statute a loose or expanded meaning. Both Committee Reports state, “There is nothing vague or uncertain about the terms used in the bill.” Clearly disclosed is the congressional intent to condemn only physical mutilation, defacement, or defilement8 of the flag, its “physical dishonor or destruction.” See S.Rep.No.1287, supra, at 3; H.R.Rep. No. 350, supra, at 3. This is further emphasized by the statement in the Reports that the original bill had been amended so as to make it clear that the bill proscribes public burning of the flag along with other contemptuous “acts of destruction.” S. Rep.No.1287, supra, at 1; H.R.Rep.No. 350, supra, at 1.
We find in this record no conduct of the sort which Congress condemned as criminal. The wearing of the shirt was not a physical mutilation, defacement, or defilement of the flag as those words are used in the statute;9 nor were the two buttons pinned on the shirt.
Considering appellant’s testimony as to his political views and ideology, we may well assume that the episode had a distinct flavor of sarcasm or mockery, with an added element of childishness in his playing with the Yo-Yo, but appellant’s performance to his audience did not include the physical injury to the material of the shirt essential to be proved beyond a reasonable doubt to support a conviction of the crime defined in the statute.10
Reversed.
. The statute reads in its operative part as follows:
(a) Whoever knowingly easts contempt upon any flag of the United States by publicly mutilating, defacing, defiling, burning, or trampling upon it shall be fined not more than $1,000 or imprisoned for not more than one year, or both.
In subparagraph (b) the statute also provides that the term “flag of the United States” shall include any representation of the flag or its parts which an average person upon seeing may believe without deliberation to represent the flag.
. This case was consolidated with No. 23784 for the appeal. We now decide only No. 23514.
. Appellant was playing with a “Yo-Yo” at the time.
. Several photographs and the torn shirt were placed in evidence by the Government as exhibits. These exhibits are not in the record before this court notwithstanding diligent efforts of our Clerk to locate them. They seem to have been lost.
. It was also brought out that there was a struggle in connection with the arrest, in which appellant’s shirt was torn and a Yiet Cong flag was found to be painted on his back under the shirt. No significance has been attached to this episode in these proceedings under the statute.
. Counsel’s arguments on tlie motions embodied both constitutional contentions.
. In Halter the state statute there upheld prohibited the commercial use of the flag. The particular conduct involved was the advertising of beer by printing and painting a representation of the flag on beer bottles.
. The House Report states that the words used in the statute have “well-defined, established” meanings and quotes Webster’s Seventh New Collegiate Dictionary definitions of the words. Thus, “defile” is defined: “to make filthy: DIRTY * * * to make ceremonially unclean: SULLY, DISHONOR.” See H.R.Rep. No. 350, supra, at 3-4.
. Although we have assumed that the shirt came within the statutory definition of a flag of the United States, the plain fact is the shirt was not a flag of the United States. In Parker v. Morgan, 322 F.Supp. 585 (W.D.N.C.1971), a statutory three-judge federal court invalidated on constitutional grounds a North Carolina flag desecration statute because it sought to protect from desecration, as though flags of the United States, a great variety of representations of the flag which in fact were not flags of the United States. We mention this problem because, when the injury is not to the flag itself but to a simulated design, it may well be that the proof of violation must be clearer than if the flag itself were desecrated. The average person naturally is more respectful in his use of the flag itself than of some of the many types of semblances of the flag.
. We note also a somewhat troublesome problem in the case. The record does not clearly indicate on which ground of the charge the trial judge found appellant guilty. The transcript indicates that he probably found only that appellant defaced the flag by pinning the buttons on the shirt. The District of Columbia Court of Appeals, however, affirmed the conviction on the ground that the wearing of the shirt in the circumstances was a “physical act which defiles the flag.” 256 A.2d at 570. It was not within the authority of the Court of Appeals to affirm the conviction on a factual basis different from that of the trial judge. Appellant does not raise the question thus suggested, and since we find neither mutilating, defacing, or defiling established, we dispose of the appeal without remand.