- The House Un-American Activities was a investigative committee of the U.S House of Representatives.
- It was originally used to uncover citizens with Nazi affiliation within the U.S. In Modern times it's known for investigating alleged disloyalty, and subversive activities on the part of private citizens, public employees, and organizations who have been suspected to be affiliated with communist ties.
- Joseph McCarthy had no involvement with the House Un-American Activie
- Throughout the late 1950's and early 1960's the significance of the House Un-American Activities declined until they renamed themselves to the House Internal Security Committee in 1969 until their abolition in 1975.