Frank Church, Democratic senator, Idaho

Otis Pike, Democratic congressman, Long Island

In 1956, Leverett Saltonstall, the ranking Republican senator on the Armed Services Committee, commented that he knew nothing of what the CIA was doing--and he wanted to know nothing. Amazingly, this remark helped beat back an attempt to establish a congressional committee to oversee the CIA.

By the mid-1970s, however, that situation had changed. We'll look tonight at the reasons, agendas, and effects of the congressional inquiries chaired by Frank Church in the Senate and Otis Pike in the House.