. >> the documents proved -- >> two years later nbc reporter carl stern figured out meaning of that wordintel pro. >> secret fbi memos made public today show that the late j. edgar hoover ordered a nationwide campaign to disrupt the activities of the new left without telling any of his superiors about it. >> of techniques were clearly illegal. burglaries and threats of violence were used. >> the fbi initially defended its actions. >> the government would have been derelict in its duty had it not taken measures to protect the fabric of our society. >> but the bureau's techniques were worse, and the targets more far reaching than the burglars ever imagined. >> diplomats, government employees, sports figures, socially prominent persons, senators and congressmen. the fbi at one time sought to blackmail the late martin luther king into committing suicide. >> marriages were destroyed, violence was encouraged, many americans were tapped and bugged, add their mail opened by the cia and the fbi and their tax returns used illegally. >> congress issued a series of reforms. when william webster took