Schenck v. United States

In Schenck v. United States, Supreme Court Justice Oliver Wendell Holmes sets forth his clear-and-present-danger test: “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 the right to prevent.” Schenck and others had been accused of urging draftees to oppose the draft and “not submit to intimidation.” Justice Holmes also writes that not all speech is protected by the First Amendment, citing the now-famous example of falsely crying “fire” in a crowded theater.