A CIA archival portait of Ames. As a member of the agency’s Department of Operations responsible for Soviet counterintelligence he became one of the highest-ranking and most damaging spies in U.S. history.

A CIA archival portait of Ames. As a member of the agency’s Department of Operations responsible for Soviet counterintelligence he became one of the highest-ranking and most damaging spies in U.S. history.