people, one of the most famous in american history, mark felt better known as deep throat. the fbi informant helped take down the nixon administration divulging crucial information about watergate. in 1971, military analyst daniel elseburg leaked top-secret department of defense information about why the u.s. entered the vietnam war. william vinny and thomas drake were nsa officials who informed the inspector general about government surveillance programs they perceived as invading citizens' privacy by monitoring their internet activity. fbi agent colleen rawley flagged then fbi director robert mueller about intelligence failures before the 9/11 attacks. or sergeant joseph darby who told military investigators in 2004 about inmate abuse at the abu ghraib prison in iraq. not everyone who blew the whistle on the government has been rewarded. for some it meant the end of their careers. or even worse. >> willful, purposeful