Conversation so far:
How long was Allen Dulles' CIA career?
Allen W. Dulles was director from 1953 to 1961 of the Central Intelligence Agency during its early period of growth.
What operations did Allen Dulles oversee at the CIA?
He oversaw the 1953 Iranian coup d'état, the 1954 Guatemalan coup d'état, the Lockheed U-2 aircraft program, the Project MKUltra mind control program and the Bay of Pigs Invasion.
What was the CIA's New Look about?
The CIA's covert operations were an important part of the Eisenhower administration's new Cold War national security policy known as the New Look.
Who else did Allen Dulles work with at the CIA?
In 1953, Dulles was involved, along with Frank Wisner, in Operation Ajax, the covert operation that led to the removal of democratically elected prime minister of Iran, Mohammad Mossadegh,
What accomplishments did Allen Dulles have at the CIA besides the Iranian coup and U-2 spy plane?
He established intelligence networks worldwide to check and counter Soviet and eastern European communist advances as well as international communist movements.

Question: How did his career end?
Self-contained rewrite: How did Allen Dulles' CIA career end?