Overview
In 1975 and 1976, the Church Committee published fourteen reports on the formation of U.S. intelligence agencies, their operations, and the alleged abuses of law and of power that they had committed, together with recommendations for reform, some of which were put in place.
Among the matters investigated were attempts to assassinate foreign leaders, including Patrice Lumumba of the Congo, Rafael Trujillo of the Dominican Republic, the Diem brothers of Vietnam, Gen. René Schneider of Chile and President John F. Kennedy's plan to use the Mafia to kill Fidel Castro of Cuba.
Under recommendations and pressure by this committee, President Gerald Ford issued Executive Order 11905 (ultimately replaced in 1981 by President Reagan's Executive Order 12333) to ban U.S. sanctioned assassinations of foreign leaders.
Together, the Church Committee's reports have been said to constitute the most extensive review of intelligence activities ever made available to the public. Much of the contents were classified, but more than 50,000 pages have since been declassified under the President John F. Kennedy Assassination Records Collection Act of 1992.
Read more about this topic: Church Committee