INTERNAL-SECURITY ACT
internal-security act.A statute illegalizing and controlling subversive activities of organizations whose purpose is believed to be to overthrow or disrupt the government. • In the United States, many provisions in such statutes have been declared unconstitutional. One such law
was repealed in 1993. See 50 USCA § 781. [Cases: Treason 1. C.J.S. Treason §§ 2–3, 5.]
[Blacks Law 8th]