His report started the lengthy process of bringing long - suppressed details about MK - Ultra to light .
In 1974 , the journalist Seymour Hersh exposed the CIA 's illegal spying on U.S. citizens and how the CIA had conducted non-consensual drug experiments .
journalist 's report started the lengthy process of bringing long - suppressed details about MK - Ultra to light .
In 1974 , the journalist Seymour Hersh exposed the CIA 's illegal spying on U.S. citizens and how the CIA had conducted non-consensual drug experiments .