United States. Congress. Senate. Committee on the Judiciary. Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws.

• Terroristic activity
• Testimony of Lawrence Britt
• 21-year index; combined cumulative index, 1951-1971
• Communist controls on religious activity
• Control of explosives
• Hashish smuggling and passport fraud : ''the brotherhood of eternal love''
• Marihuana-hashish epidemic and its impact on United States security
• State Department bombing by Weatherman Underground
• Subversive control of the United Public Workers of America
• Subversive influence in certain labor organizations
• Subversive influence in the Dining Car and Railroad Food Workers Union
• Subversive influence in the United Electrical, Radio, and Machine Workers of America, Pittsburgh and Erie, Pa. (Investigation relative to legislation designed to curb Communist penetration and domination of labor organizations)