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 endorsed the 1918 modification to the Espionage Act of 1917, which classified as a criminal offense urging a reduction in materials necessary for World War I production with intent to obstruct war progress.