Hearings Relating to H.R. 15626, H.R. 15649, H.R. 16613, H.R. 16757, H.R. 15018, H.R. 15092, H.R. 15229, H.R. 15272, H.R. 15336, H.R. 15828 Amending the Subversive Activities Control Act of 1950. hearings before the United States House Committee on Un-American Activities, Ninetieth Congress, second session, on Apr. 30, May 1, 2, 22, 1968. Part 1 :

Considers H.R. 15626, and nine related and identical bills to amend Subversive Activities Control Act of 1950 to require government security clearance of persons working near classified information in defense facilities.