J. Edgar Hoover fought domestic communism in the 1940s with illegal investigative methods and by recommending a procedure of guilt by association to HUAC. The debate over illegal surveillance in the 1940s to protect national security reflects the on‐going tensions between national security and civil liberties. This essay explores how in times of national security crises, concerns often exist about civil liberties violations in the United States.
Stephen M. Underhill, “J. Edgar Hoover, Speech Before the House Committee on Un-American Activities (26 March 1947),” Voices of Democracy 3 (2008): 139-161.