In Abrams v. United States, 250 U.S. 616 (1919), the Supreme Court upheld the 1918 Amendment to the Espionage Act of 1917, which made it a criminal offense to urge the curtailment of production of the materials necessary to wage World War I with intent to hinder the progress of the war.
In Abrams v. United States (250 U.S. 616, 1919), the Supreme Court affirmed the 1918 amendment to the Espionage Act of 1917, which deemed it illegal to encourage a decrease in materials essential for World War I production with the aim of hindering war advancement.