Sandra “Sandy” Grimes, who worked at the CIA from the late 1960s, at home in Great Falls, Va. As one of the investigators in Operation Playactor, Grimes created a chronology that was instrumental in identifying Ames as a spy.

Sandra “Sandy” Grimes, who worked at the CIA from the late 1960s, at home in Great Falls, Va. As one of the investigators in Operation Playactor, Grimes created a chronology that was instrumental in identifying Ames as a spy.