...Beginning in the early 1960s, the FBI conducted a multi-pronged counterintelligence offensive against targets like Martin Luther King, Jr. and his supporters, the Socialist Workers Party, White Hate Groups, the Black Panthers, people who wanted to abolish HUAC, and the New Left. The Bureaus enemies were bugged, infiltrated, sabotaged and disrupted whenever possible. FBI Director J. Edgar Hoover personally approved hundreds of such COINTELPRO operations, on grounds that Communists were behind every act of dissent.
In the 1970s, victims of COINTELPRO obtained voluminous files on these activities through the Freedom of Information Act, leading to multi-million dollar lawsuits against the government and its agents. But much of the damage couldnt be undone. For example, no lawsuit could compensate for the impact on film star Jean Seberg. Her support for the Black Panthers provided a justification for the FBI to spread false stories about her sex life. Distressed by the smears, she had a mental breakdown and ultimately killed herself...
Revelations about intelligence abuses led in the 1970s to more restrictive standards and, for a while, limited intrusive tactics. But by the early 1980s, another terrorist scenario reversed that trend. Reagans CIA chief, William Casey, drafted an executive order on intelligence, freeing the attorney general to conduct an intrusive investigation of anyone who may be acting on behalf of a foreign power. As far as the disinformation experts were concerned, this included all of the American left. Searches and break-ins would no longer require warrants; the CIA would once again be able to bug US citizens at home; phone taps were back in fashion. And to cut down on objections, the attorney general urged federal agencies to withhold more information about what they were doing...
The theory was adopted as a rationale for covert US acts of war in Central America and equally covert harassment at home of people who didnt care for the Reagan Revolution. To the administration and Jeremiah Denton, anyone opposing the government was more than likely either a potential terrorist or a Soviet dupe. Either way, they required surveillance and maybe much more.
http://www.globalresearch.ca/dirty-wars-and-disinformation-in-the-age-of-ronald-reagan/5338436