James Jesus Angleton

James Jesus Angleton (December 9, 1917 – May 11, 1987) was an American Central Intelligence Agency (CIA) officer who served as chief of the counterintelligence department of the CIA from 1954 to 1975. According to director of central intelligence Richard Helms, Angleton was "recognized as the dominant counterintelligence figure in the non-communist world".

Angleton, who had an academic background in literary criticism, served in the Office of Strategic Services at OSS/London and Rome between 1943 and 1946, where he rapidly rose through the ranks. In 1947, he returned to Washington, D.C. to become one of the founding officers of the CIA. He was initially responsible for the collection of foreign intelligence and liaison with counterpart organizations in allied countries. In 1954, Allen Dulles promoted Angleton to chief of the Counterintelligence Staff. As chief, Angleton was significantly involved in the defection of Soviet KGB agents Anatoliy Golitsyn and Yuri Nosenko. Through Golitsyn, Angleton became convinced the CIA harbored a high-ranking Soviet mole and engaged in an intensive search. Whether this was a highly destructive witch hunt or appropriate caution remains a subject of intense historical debate.

Investigative journalist Edward Jay Epstein agrees with the high regard in which Angleton was held by his colleagues in the intelligence business, and adds that Angleton earned the "trust of six CIA directors—including Gen. Walter Bedell Smith, Allen W. Dulles and Richard Helms. They kept Angleton in key positions and valued his work."