Dennis v. United States
case relating to Eugene Dennis, General Secretary of the Communist Party USA. The Court ruled that Dennis did not have the right under the First Amendment to the United States Constitution to exercise free speech, publication and assembly, if the exercise involved the creation of a plot to overthrow the government.
Brandenburg v. Ohio
a leader of the Ku Klux Klan, made a speech at a Klan rally and was later convicted under an Ohio criminal syndicalism law. Law was found unconstitutional under the First and Fourteenth Amendments. States were not allowed to punish or prevent inflammatory speech unless it will lead to imminent lawless action
United States v. O'Brien
court case that had to deal with the burning of draft cards; said he can protest the Vietnam war but he can't burn the draft card-this case laid down the three-part test for symbolic speech including that limits be narrowly drawn.
, the first amendment does not protect destruction of government property like the selective service certificate.
Texas v. Johnson
A 1989 case in which the Supreme Court struck down a law banning the burning of the American flag on the grounds that such action was symbolic speech protected by the First Amendment.