The Agency and Congressional Files consist of security files, federal agency files, and Congressional files. The security files include information regarding the defense budget, Defense Vietnam, and U.S. security and intelligence. The agency files contain material directly produced by agencies of the U.S. Federal Government, including the Central Intelligence Agency, the Department of Justice, the National Security Council, and the Department of State. The Congressional files include material regarding the McCloskey/Kennedy Hearings, Senator Mike Mansfield, and other materials written on Congressional letterhead. Arranged chronologically.