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U.S. Assistant to the President for Homeland Security and Counterterrorism John Brennan, nominated by U.S. President Barack Obama to be the next Director of the Central Intelligence Agency, testifies before the Senate Intelligence Committee February 7, 2013 in Washington, DC. (Photo by Alex Wong/Getty Images).
Allen Dulles. The director of the CIA under Eisenhower, who advocated extensive use of covert operations. Most notable among Dullesâs initiatives were U.S.-sponsored coups in Iran in 1953 and Guatemala in 1954, which installed pro-American governments in order to curb potential expansion of Communism.