What the FBI did to American citizens is beyond what most people realize today.
COINTELPRO discussed with Former Vice President Walter Mondale, Walter Huddleston and others. From the Church Report on U.S. Spy Agencies.
"did you hear about the assasination of Fred Hampton?" Noam Chomsky gives examples of COINTELPRO actions, Understanding Power p118
Also see this post:
Covert Actions Against American Citizens Living in America