The Senate Internal Security Subcommittee (SISS) was established in 1951, in the wake of the passage of the Internal Security Act of 1950. A subcommittee of the Senate Judiciary Committee, SISS is widely considered as the Senate counterpart of HUAC. SISS was disbanded in 1977.
The CWIS Collection contains over 800 volumes of SISS hearings, reports and other documents. Almost all have the SuDoc Stem Y 4. J 89/2.
Examples of noteworthy SISS documents in the CWIS Collection include: