This article is from the alt.usage.english FAQ, by Mark Israel email@example.com with numerous contributions by others.
This is from the U.S. Supreme Court's decision in Schenck v. U.S.
(1919), setting limits on the freedom of speech guaranteed by the
First Amendment to the Constitution. Justice Oliver Wendell Holmes,
Junior, wrote: "The most stringent protection of free speech would
not protect a man falsely shouting fire in a theater and causing a