When these trials come, I would certainly expect that the defense lawyers to hand out copies of the US Constitution to all and sundry and then ask for a directed verdict of 'Not Guilty' for any who were just in the public corridors!
Amendment I
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.