Bill Moyers: The Secret Government PBS (1987)

It aired on PBS in 1987 and is as good as anything on the tape. Bill Moyers is one of the most recognizable and celebrated journalists whose approach to investigative journalism is highly respected. Known for his award winning PBS documentaries, in this segment he interviews several different people involved with the CIA and other government agencies who speak about various U.S. foreign policy covert and overt operations that took place during the Cold War era. His documentary gives quite an overview of what has actually happened in the last 50 years regarding the founding of the National Security Agency and the CIA.