The '''Subversive Activities Control Board,''' (SACB) 1950–1972 records contain information about the [[Communist Party of the United States]] (CPUSA) and its [[Glossary_of_espionage_terms#Fronts_and_cutouts|front organization]]s. The records constitute one of the most valuable resources for the study of [[left-wing]] radicalism during the 1950s and 1960s.
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The '''Subversive Activities Control Board,''' (SACB) 1950–1972 was created by the '''Subversive Activities Control Act of 1950'''. SACB records contain information about the [[Communist Party of the United States]] (CPUSA) and its [[Glossary_of_espionage_terms#Fronts_and_cutouts|front organization]]s. The records constitute one of the most valuable resources for the study of [[left-wing]] radicalism during the 1950s and 1960s.