McCarran Internal Security Act

McCarran Internal Security Act

Other short titles	McCarran Act Subversive Activities Control Act of 1950
Long title	An Act to protect the United States against certain un-American and subversive activities by requiring registration of Communist organizations, and for other purposes.
Nicknames	Internal Security Act of 1950, Concentration Camp Law
Enacted by	the 81st United States Congress
Effective	September 23, 1950
Citations
Public law	Pub. L. 81–831
Statutes at Large	64 Stat. 987
Codification
Titles amended	50 U.S.C.: War and National Defense
U.S.C. sections created	50 U.S.C. ch. 23, subch. I § 781 et seq.
Legislative history
Introduced in the Senate as S. 4037 by Pat McCarran (D-NV) on August 10, 1950[1] Committee consideration by Judiciary Committee Passed the Senate on September 12, 1950 (70–7) Passed the House on August 29, 1950 (354–20) Reported by the joint conference committee on September 20, 1950; agreed to by the House on September 20, 1950 (313–20) and by the Senate on September 20, 1950 (51–7) Vetoed by President Harry S. Truman on September 22, 1950 Overridden by the House on September 22, 1950 (286–48) Overridden by the Senate and became law on September 22, 1950 (57–10)
United States Supreme Court cases
Carlson v. Landon, 342 U.S. 524 (1952) United States v. Spector, 343 U.S. 169 (1952) Heikkila v. Barber, 345 U.S. 229 (1953) Galvan v. Press, 347 U.S. 522 (1954) Communist Party of United States v. Subversive Activities Control Bd., 351 U.S. 115 (1956) United States v. Witkovich, 353 U.S. 194 (1957) Rowoldt v. Perfetto, 355 U.S. 115 (1957) Bonetti v. Rogers, 356 U.S. 691 (1958) Kent v. Dulles, 357 U.S. 116 (1958)

The Internal Security Act of 1950, 64 Stat. 987 (Public Law 81-831), also known as the Subversive Activities Control Act of 1950, the McCarran Act after its principal sponsor Sen. Pat McCarran (D-Nevada), or the Concentration Camp Law,^[2] is a United States federal law. Congress enacted it over President Harry Truman's veto. It required Communist organizations to register with the federal government. The 1965 U.S Supreme Court ruling in Albertson v. Subversive Activities Control Board saw much of the act's Communist registration requirement abolished. The emergency detention provision was repealed when the Non-Detention Act of 1971 was signed into law by President Richard Nixon. The act's Subversive Activities Control Board, which enforced the law's provision calling for investigations of persons engaging in "subversive activities," would also be abolished in 1972.