From Cointelpro to threatening Iranian students back in the day when there was a Savak (Shah's secret police) to assisting in covering up one informer by allowing a murder (as in the Whitey Bulger story in Boston) there are some renegade and out of control people there.  The climate of fear and secrecy around "warronterrar" allows more of this stuff to flourish. How many Iranians remember being rendered (assuming survival at the hands of Savak)back to Iran via the US political police?

  Grabbing some people and making them objects of fearmongering and sensational stories in the media is a career building move.  How much info is there on career FBI senior people who get away with this and are rewarded for it?

 Good point "We don't torture" on US soil when we(Bush's FBI) can send them into the clutches of someone who will.