Appellant was convicted of unlawful entry 1 fоr having refused to leave the White House grounds when directed to do so by a person in lawful authority. On appeal he argues that he was engaging in symbolic speech at the White House and that the government failed to prove an additional specific factor establishing his lack of a legal right to remain there. He also contends that the trial court denied him the right to make an opening statement and to present an effective defense, and that the court erred in refusing to ask certain questions of the venire during the voir dire.
*588 Appellant’s first argument is unsupported by the evidence. His voir dire argument, although it has some merit with respect to one question, does not warrant reversal. His other contentions are totally without merit and are, in any event, affirmatively refuted by the record.
I
On December 29, 1984, the day after the feast of the Holy Innocents, 2 appellant Boertje and a companion, along with a group of tourists, entered the grounds of the White House through the visitors’ center on East Executive Avenue. As appellant entered the visitors’ center, he walked past a posted sign containing this message:
The White House and grounds are protected by the United States Secret Service and the United States Secret Service Uniform Division, pursuant to 18 U.S. Code 3056 and 3 U.S. Code 22. To assure your enjoyment of your tour and to assist in the protection of the properties, all persons entering this property are advised that any activity that disrupts the tour or impedes the flow of pedestrian traffic is prohibited. Thank you for your cooperation, and please enjoy your visit to the White House.
To ensure an orderly flow of pedestrian traffic through the White House grounds, the paved tour route is bordered along its entire length by a line of metal stanchions connected by metal chains. Tour guides are also stationed along the route to remind visitors that they must keep the line moving.
Sergeant Roland Mayclin of the Secret Service was the senior uniformed officer on duty that morning on the north grounds of the White Hоuse. As such, he had the authority to ask any person who was disrupting a tour or impeding pedestrian traffic to leave the grounds. Thus, when May-clin saw Boertje and his companion stop along the tour route, he asked them to keep pace with the normal flow of pedestrian traffic. Boertje replied, “I’m not going to leave. You’ll have to arrest me.” As he spoke these words, Boertje knelt down on the paved walkway. Sergeant Mayclin repeated his request, this time telling Boertje that he would be subject to arrest for unlawful entry if he refused to get up and leave. Boertje did not respond. Mayclin made the same request of Boertje’s companion, who thereupon walked out the gate “in the normal manner.” Boertje, however, remained kneeling and gave no response when Mayclin asked him for the third time to get up and move along. Consequently, on the orders of Sergeant May-clin, Boertje was arrested by Secret Service Officer Michael Redwine, who had walked over to assist Mаyclin.
At trial Boertje did not refute the government’s version of the facts as they were recounted by Mayclin and Redwine. He admitted seeing the posted warning sign at the visitors’ center, admitted entering the White House grounds “with the intent of risking arrest,” admitted being asked several times by Sergeant Mayclin to get up off his knees and move along the tour line or risk arrest, and admitted refusing to do so. He defended his actions by telling the court that he was acting on his belief that the “first strike” nuclear capability of the United States was cоntrary to the teachings of God and an international crime against peace as defined by the Nürnberg tribunal. 3 According to Boertje, he chose the White House grounds for his protest because in his view the President was primarily responsible for this country’s nuclear weapons policy.
In anticipation of his defense, Boertje, *589 who served as his own attorney at trial, 4 proposed a lengthy set of voir dire questions, all but two of which the trial court rejected as irrelevant. Boertje claims that the trial court erred in refusing to ask the remaining two voir dire questions in the form requested. Additionally, he argues that the unlawful entry statute as apрlied to him violated his free speech rights under the First Amendment, and that he was denied an opportunity to make an opening statement and to put on the defense he wanted. 5
II
The White House differs from all other properties owned by the United States government because it is the official residence of the President. Because of its unique nature, the exercise of citizens’ First Amendment right of free speech on the White House grounds may be regulated in a “more stringent [manner] ... than would be tolerated on most other government properties.”
Smith v. United States,
In Leiss two protesters entered the White House grounds with a tour group, stationed themselves near the entrance gate, and began to read a statement in opposition to United States foreign policy. They were told by an Executive Protective Service officer that they could stand there and continue to read their statement until the noon closing hour, but that if they remained on the grounds after that time, they would be subject to arrest. When the visiting hours were over and the gates were about to be closed, Leiss refused to leave and was arrested.
Here, on the other hand, Boertje simply knelt down without saying a word. When Sergeant Mayclin asked him to get up and proceed along the tour route, all that Boertje said was “I’m not going to leave. You’ll have to arrest me.” These were the only words he spoke before he was arrested. Even though Mayclin asked him twicе more to get up and move along and told him that he would be subject to arrest for unlawful entry if he refused to do so, Boertje said nothing further. According to the evidence, Boertje never told Sergeant Mayclin, Officer Redwine, or anyone else at the White House that he was protesting against United States nuclear weapons policy. Unlike the officers in Leiss, who were informed of the protesters’ intentions, Sergeant Mayclin and Officer Redwine had no way of knowing what Boertje's intentions were or what his mеssage was.
The Supreme Court has made it quite clear that a person cannot claim the protection of the First Amendment without engaging or attempting to engage in some kind of communication, either by speech or by conduct. “[I]t is the obligation of the person desiring to engage in assertedly expressive conduct to demonstrate that the
*590
First Amendment even applies. To hold otherwise would be to create a rule that all conduct is presumptively expressive.”
Clark v. Community for Creative NonViolence,
Sergeant Mayclin had no way of knowing why Boertje suddenly fell to his knees in front of the White House. Since Boertje’s conduct failed to “convey a particularized message,”
Spence v. Washington, supra,
Along these same lines, Boertje argues that the government failed to prove an “additional specific factor establishing [his] lack of a legal right to remain [on the White House grounds].”
O’Brien v. United States,
For these reasons we find no merit in any of Boertje’s First Amendment arguments.
Ill
Just before the trial began, before the voir dire of the jury, the court ruled that Boertje could not raise the defenses of “justifiable presence” or obedience to international law. Boertje asserts that this ruling denied him the opportunity to put on the defense he wanted, including expert testimony (although he does not identify any expert or state what his or her testimony would have been). He also says that the court’s ruling discouraged him from making an opening statement. The record plainly shows, however, not only that Boertje made an opening statement but that it was quite a detailed one, extending over five pages of transcript. The record also shows that Boertje, over the government’s repeated objections, was given wide latitude in presenting his defense.
First, he was allowed to explain why he chose the White House for the site of his kneel-in. Then, when the government objected to a line of questioning аbout Boertje’s opposition to nuclear weapons, the court overruled the objection (acknowledging nevertheless that it was appropriate) and allowed Boertje to tell the jury why he felt he was justified in kneeling on the White House grounds. When Boertje began to discuss international law and the Nürnberg trials, the government once again objected, but the court allowed him to explain why he felt he was obligated by international law to protest the “crime” of nuclear weapons proliferation. When Boertje started talking about the religious underpinnings of his action, the government objected again, but the court permitted him to finish his testimony. Finally, when Boertje was asked at the end of his direct examination if he wanted to say anything more, he paused and said, “That’s it.” This statement strongly suggests that he said all he wanted to say in his defense. On this record we find no substance in Boertje’s contention that the court precluded him from presenting the defense he wanted to present.
In any event, a claim by Boertje that he was justified under either international or divine law to remain kneeling on the White House grounds would not have been, on the facts of this case, a valid defense to the charge of unlawful entry.
See Shiel v. United States,
IV
At the beginning of the voir dire, Boertje presented to the court a host of questions for the prospective jurors. The court refused to ask most of the proposed questiоns on the ground of irrelevancy, and we find no abuse of discretion in its doing so. 9 We are somewhat troubled by the court’s decision not to ask one particular question, viz., whether a family member or close friend of any of the potential jurors worked either for a government agency that handles nuclear materials, such as the Department of Defense or the Department of Energy, or for a company that manufactures or designs nuclear weapons or nuclear weapon systems. We hold nevertheless that the court’s failure to ask this question was not an abuse of discretion.
When Boertje first proposed this question, the court was inclined to ask it, apparently in the form suggested by Boertje. Eventually, however, the court asked a more general question, namely, whether any of the prospective jurors or their relatives or close friends had “any strong feelings, either for or against a person who has participated in one or more political or religious protests ... [or] аbout someone who might be considered to be a political activist or a religious activist.” One person responded. After the voir dire was completed, each party was given an opportunity to strike any prospective juror for cause. Boertje struck no one for cause. Both parties then exercised their peremptory challenges, and a jury was empaneled.
Voir dire
serves to assure an accused, as far as possible, an impartial jury by exposing any juror biases that might affect the verdict.
See Jenkins v. United States,
*593
Just because a particular issue in a trial might conceivably prejudice some venire members against a defendant, the defendant does not always have a right to
voir dire
questions specifically directed to that issue.
See Ristaino v. Ross,
Even assuming that some of the prospective jurors had relatives or friends whose employment was in some way connected with the manufacture or development of nuclear weapons, Boertje’s entitlement to a specific
voir dire
question would depеnd on whether testimony on American nuclear policy impacted on the trial as a whole,
see Jenkins v. United States, supra,
This case is easily distinguishable from
Cordero v. United States, supra,
on which Boertje places great reliance. Cordero was arrested when, from the gallery of the United States Senate, he shouted slogans in opposition to American foreign and domestic policy. In addition to verbalizing his disenchantment with cаpitalist oppression, Cordero flung leaflets into the air which contained the same basic message as his oral pronouncements. Two Capitol Police officers heard him shouting and saw the leaflets. At his trial Cordero planned to
*594
defend on the ground that he was a member of the Vietnam Veterans Against the War and the Revolutionary Communist Party and was exercising his First Amendment right to express his political views. This court held that Cordero’s political beliefs and affiliations were “among the basic facts underlying his alleged offense; they would be evident to the jury as soon as the jury learned (as inevitably it would from the government’s case-in-chief)
what he said
in his protest statement and had the opportunity
to examine the leaflet.”
At Boertje’s trial, on the other hand, the government introduced no evidence relating to Boertje’s views on nuclear weapons. Nor was it obliged to do so, since Boertje had failed to tell the two Seсret Service officers why he was kneeling in front of the White House, and there was no evidence of any literature being distributed to show why he was there. In short, Boertje’s religious and political views were totally irrelevant to the government’s case. In light of the uncontroverted evidence that Boertje gave the officers no reason for his unusual behavior — behavior that could be characterized as threatening, or at least suspicious, under the circumstances — all the government had to do was to prove that Boertje did not leave the grounds when asked. Unlike the situation in
Corde-ro,
the reason behind Boertje’s action was known only to Boertje at the time he was arrested. His purpose for doing what he did was therefore not “inextricably bound up with” his trial,
13
Ristaino v. Ross, supra,
The judgment of conviction is accordingly
Affirmed.
Notes
. D.C.Code § 22-3102 (1989).
. Fearing that the newborn infant Jesus would take his throne away from him, King Herod calculated the time of Jesus’ birth from information given to him by the Magi. He then ordered the massacre of all male children in Bethlehem and the surrounding region who were two years old and under. See Matthew 2:7-8, 16-18. The slaughtered children came to be known as the Holy Innocents, and their feast day is generally celebrated on December 28.
. Boertje testified that he was a member of Jonah House, a Baltimore-based community *589 "dedicated to full-time resistance against nuclear weapons."
. Although Boertje proceeded pro se, the court nevertheless permitted an attorney to assist him, during both the pre-trial proceedings and the trial itself. That attorney now represents him on appeal.
. He also argues that the trial court erred in •denying his motion for judgment of acquittal. This argument is patently without merit.
See, e.g., McEachin v. United States,
. Only a few months ago the Supreme Court had occasion once again to consider the issue of conduct as protected speech. While recognizing that the protection of the First Amendment "does not end at the spoken or written word," the Court also reiterated the test for determining when conduct may be entitled to such protection:
In deciding whether particular conduct possesses sufficient communicative elements to bring the First Amendment into play, we have asked whether "[a]n intent to convey a particularized message was present, and [whether] the likelihood was great that the message would be understood by those who viewed it.”
Texas v. Johnson,
— U.S. -,
. In his opening statement, Bоertje said that he had participated in a “Peace yes, arms no” march around the White House earlier that day, and that just before he knelt down, he unfurled a banner with those words on it. An opening statement, however, is not evidence.
See Robinson v. United States,
. An additional specific factor, under
O’Brien
and other cases, "may consist of posted regulations, signs or fences and barricades regulating the public’s use of government property, or other reasonable restrictions."
Carson, supra,
. For example, Boertje wanted the court to ask whether any member of the venire (1) was familiar with the significance of the feast of the Holy Innocents (see note 2, supra); (2) was aware that international law, as determined in the Nürnberg trials in post-Nazi Germany, outlawed certain kinds of warfare; (3) knew that the First Amendment prohibited the federal government from establishing any religion; (4) had heard of a West German group calling itself "Judges and Prosecutors for Peace”; (5) knew of the events in Nazi Germany that had culminated in the mass murder of millions of Jews; (6) had heard that Christian principles were inconsistent with nuclear proliferation; (7) had heard of the belief that one cannot worship both God and the bomb; (8) was aware that there were, on the average, seven false nuclear alarms per day; or (9) was familiar with the theory of a nuclear winter. Boertje also requested several biblically-based questions.
After the trial court repeatedly rejected his requests, Boertje proposed the following voir dire question: “Is anyone here familiar with Jesus’ parable of the persistent widow and the unjust judge?” See Luke 18:1-5. The court ruled this question irrelevant as well.
. We note in any event that Boertje’s claim of prejudice is unparticularized and speculative. He has made no showing that any juror had friends or relatives employed in the nuclear industry.
Cf. Jones v. United States,
. Two concurring justices in
Rosales-Lopez
would have gone further than the plurality and "would [have left] somewhat more to the trial court's discretion ... the decision as to whether or not [such] questions ... should be asked on
voir dire." Rosales-Lopez, supra,
. Among the questions which Cordero sought to ask were:
Have you read or heard anything about other protest activities of the Vietnam Veterans Against thе War [or] the Revolutionary Communist Party[?] If so, would anything you have heard or read come into play in your consideration of this case? ...
Have any of you or any close friends, family members, or associates ever been a member of any organization which had as one of its objectives opposition to Communism?
Cordero, supra,456 A.2d at 843-844 . We held that the trial court should have incorporated the substance of these questions into its voir dire.
. For this reason we need not decide whether the nuclear weapons policy of the United States is a matter about which "either the local community or the population at large is commonly known to harbor strong feelings.”
Cordero v. United States, supra,
