The United States Senate's Special Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws, 1951–77, known more commonly as the Senate Internal Security Subcommittee (SISS) and sometimes the McCarran Committee, was authorized by S. 366, approved December 21, 1950, to study and investigate (1) the administration, operation, and enforcement of the Internal Security Act of 1950 (, also known as the McCarran Act) and other laws relating to espionage, sabotage, and the protection of the internal security of the United States and (2) the extent, nature, and effects of subversive activities in the United States "including, but not limited to, espionage, sabotage, and infiltration of persons who are or may be under the domination of the foreign government or organization controlling the world Communist movement or any movement seeking to overthrow the Government of the United States by force and violence". The resolution also authorized the subcommittee to subpoena witnesses and require the production of documents. Because of the nature of its investigations, the subcommittee is considered by some to be the Senate equivalent to the older House Un-American Activities Committee (HUAC). The chairman of the subcommittee for the 82nd United States Congress was Patrick McCarran of Nevada. William Jenner of Indiana took over during the 83rd United States Congress after the Republicans gained control of the Senate in the 1952 election. When the Democrats regained control in the 84th Congress (1955–1957), James O. Eastland of Mississippi became chairman, a position he had until the subcommittee was abolished during 1977. The subjects of its investigations during the 1950s include the formulation of U.S. foreign policy in Asia; the scope of Soviet activity in the United States; subversion in the Federal Government, particularly in the Department of State and Department of Defense; immigration; the United Nations; youth organizations; the television, radio, and entertainment industry; the telegraph industry; the defense industry; labor unions; and educational organizations. In the 1960s, the investigations were expanded to include civil rights and racial issues, campus disorders, and drug trafficking. The subcommittee published over 400 volumes of hearings and numerous reports, documents, and committee prints. During March 1951, FBI officials began a formal liaison program with the SISS in contract to the informal HUAC-FBI relationship, whereby SISS agreed to focus its hearings on "matters of current internal security significance...[and also] to help the Bureau in every possible manner". Under this program,