During the 1970s, Bureau actions, which were publicly revealed through a strengthened Freedom of Information Act (1966, amended in 1974), resulted in congressional investigations like the [[Church Committee]] and the Pike Committee hearings in 1975. In response to criticisms emerging from these revelations, the Bureau worked with Attorney General Levi to develop guidelines for its domestic counterintelligence investigations. | During the 1970s, Bureau actions, which were publicly revealed through a strengthened Freedom of Information Act (1966, amended in 1974), resulted in congressional investigations like the [[Church Committee]] and the Pike Committee hearings in 1975. In response to criticisms emerging from these revelations, the Bureau worked with Attorney General Levi to develop guidelines for its domestic counterintelligence investigations. |