Lifted from a previous post: viewtopic.php?f=21&t=47369&p=494533&#p494533
This is a personal pet peeve of mine. The idea that rights can be restricted by government, because after all "you can't yell fire in a crowded theater". Well, its bull$hit. This common piece of folklore originated in the US Supreme Court ruling Schenck v. US.
http://en.wikipedia.org/wiki/Schenck_v._United_States
The case involved a man who was distributing leaflets urging people to resist the draft during WWI. The Supreme Court ruled that speech is not protected by the 1st Amendment when it represents a clear and present danger. The reference to yelling fire in a crowded theater was never actually part of arguments, but simply used as a metaphor. The language in the opinion was:
The most stringent protection of free speech would not protect a man in falsely shouting fire in a theatre and causing a panic. [...] The question in every case is whether the words used are used in such circumstances and are of such a nature as to create a clear and present danger that they will bring about the substantive evils that Congress has a right to prevent.
However, the court reversed itself in 1969 in the Brandenburg v. Ohio ruling:
http://en.wikipedia.org/wiki/Brandenburg_v._Ohio
Here, the court found that a "clear and present danger" was too broad a criteria for limiting 1st Amendment protections, and adopted the new standard of an "imminent lawless action". So the commonly cited metaphor breaks down under the current standard. While falsely yelling fire in a crowded theater may be a danger, it's still protected as it's not the advocating of an imminent lawless action.
A person can yell fire in a crowded theater. He may be arrested, or even charged with a crime, but the standard set by the Supreme Court in 1969 results in his speech being protected, and he should not be found guilty of a crime simply because of his speech. Only when a person advocates or "eggs on" another person to commit a crime, and the commission of that crime was imminent is the speech not protected.
Our rights are not absolute, but any limitations on our rights have to be extremely narrowly defined. Specifically, speech that poses a danger *is* protected so long as it doesn't advocate for imminent lawlessness. Any limitations on our 2nd Amendment rights should follow the same model. They should not be limited based on any "potential" for danger, but only when a lawless action is imminent, or has already been committed. This should be the only restriction the people concede to the government concerning our fundamental human rights without due process of law.