In Schenck v. United States (1919), Justice Holmes used which analogy in upholding the government's right to restrict speech that poses a clear and present danger? Multiple choice question. The First Amendment does not permit a person to falsely yell "Fire" in a crowded theater. People on public land cannot post signs warning about dangerous animals that aren't really present. The First Amendment permits people to yell "Fire" in a crowded theater only if they think they smell smoke. Even though rumors about emergencies can be dangerous, people must be allowed to spread them in case they are true