« Previous
Next »
Subject
- Internal security249
- Subversive activities[remove]249
- Communism81
- History56
- McCarthy, Joseph, 1908-195725
- Politics and government24
- Congressional investigations22
- Anti-communist movements19
- Espionage17
- Internal Security Act of 195016
- Legislative amendments16
- United States16
- Congressional hearings15
- Communist Party of the United States of America (1929-1944, 1945- )11
- Background checks9
- Detention of persons9
- Loyalty-security program9
- Police9
- Propaganda9
- Security clearances9