Robert Lamphere (1918-2002) supervised many investigations of Soviet spies during the Cold War. He served as the FBI’s liaison to the top-secret Venona Project, which worked to break Soviet codes and revealed the extent of Soviet espionage in the United States.
His early espionage cases focused on those who attempted to infiltrate the Manhattan Project. In 1950, his interrogation of Klaus Fuchs in London led to the identification and arrest of Harry Gold, David Greenglass, and Julius and Ethel Rosenberg.