From
Wikipedia:
Richard McGarrah Helms (March 30, 1913 – October 23, 2002) was the Director of Central Intelligence (DCI) from 1966 to 1973. He was the only director to have been convicted of lying to Congress over Central Intelligence Agency (CIA) undercover activities. In 1977 he was sentenced to the maximum fine and received a suspended two-year prison sentence. Despite this, Helms remains a revered figure in the intelligence profession. CIA Historian Keith Melton describes Helms as a professional always impeccably dressed and had a "low tolerance for fools" . . . .
The ease of Helm's role under President Lyndon Johnson changed with the arrival of President Richard Nixon and Nixon's national security advisor Henry Kissinger. After the debacle of Watergate, from which Helms succeeded in distancing the CIA as far as possible, the Agency came under much tighter Congressional control.
In 1972, Helms ordered the destruction of most records from the huge MKULTRA project, over 150 CIA-funded research projects designed to explore any possibilities of mind control. The project became public knowledge two years later, after a New York Times report. Its full extent may never be known.
Nixon considered Helms to be disloyal and fired him as DCI in 1973. Helms then served from 1973 to 1976 as US ambassador to Iran in Tehran.
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