Espionage Act of 1917

A United States federal law enacted during World War I that criminalized specified interference with military operations and recruitment, as well as certain disclosures of national-defense information.

Section 3 of the Espionage Act: The 1917 act’s provision criminalizing specified interference with military operations and recruitment. This section supplied the principal charges against antiwar activists and draft opponents.
Schenck v. United States: A 1919 Supreme Court case upholding Charles Schenck’s conviction for distributing anti-draft leaflets under the Espionage Act. The decision introduced the influential, later-abandoned clear-and-present-danger test.
Woodrow Wilson: The 28th president of the United States, who signed the Espionage Act into law in 1917. His administration sought federal powers to protect military operations and suppress wartime obstruction.
First Amendment to the United States Constitution: The constitutional amendment protecting freedoms including speech, press, religion, assembly, and petition. Challenges to the act asked how its speech restrictions could coexist with these protections.
Sedition Act of 1918: A 1918 law that expanded federal restrictions on speech critical of the United States government and war effort. It amended the wartime framework with broader speech offenses before repeal in 1920.
Debs v. United States: A 1919 Supreme Court case affirming Eugene V. Debs’s conviction for an antiwar speech under the Espionage Act. The ruling applied the act to political advocacy addressed to a public audience.
Charles Schenck: An American Socialist Party official convicted under the Espionage Act for distributing anti-draft leaflets. His case produced the Supreme Court’s early test for restricting speech.
Clear and present danger: A legal test associated with whether speech creates a sufficiently serious danger to justify restriction. Schenck used this test to uphold an Espionage Act conviction; later doctrine replaced it.
Selective Service Act of 1917: The federal law that established conscription for United States military service during World War I. Espionage Act prosecutions often targeted efforts to obstruct the draft it established.
Abrams v. United States: A 1919 Supreme Court case affirming convictions for distributing leaflets opposing United States intervention in Russia. The case tested the act’s reach and prompted Justice Holmes’s famous dissent on free speech.

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