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The Cold War was marked by vigorous efforts of the United States and the Soviet Union to acquire intelligence about each other through all available means, including espionage. The Manuscript Division holds collections documenting the US Venona Project to gather information on Soviet activities during World War II and afterwards; the high-profile trial of Soviet agents Julius and Ethel Rosenberg in 1951; surveillance of American communists; counter-espionage activities of the Federal Bureau of Investigation (FBI); and the activities of the Central Intelligence Agency (CIA).
The following collection titles link to fuller bibliographic information in the Library of Congress Online Catalog. Links to additional online content, including finding aids for the collections, are included when available.