Why is freedom of speech limited in the United States?

Free speech was limited in 1919 after a decision was reached about the Supreme Court case, Schenck v. United States. The court determined that free speech would not be permitted when it presented a "clear and present danger" to society.

The case in question was about to two individuals by the names of Charles Schneck and Elizabeth Baer. Shneck and Baer were socialists and they were distributing leaflets urging the public to disobey the United States draft. The Supreme Court ruled against Shneck and Baer's right to freedom of speech in this case because they believed that the government required deference during wartime.

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