Ewen MacAskill and Ian Black
London Guardian 
May 12, 2012
Detailed leaks of operational information about the foiled underwear bomb plot are causing growing anger in the US intelligence community, with former agents blaming the Obama administration for undermining national security and compromising the British services, MI6 and MI5.
The Guardian has learned from Saudi sources that the agent was not a Saudi national as was widely reported, but a Yemeni. He was born in Saudi Arabia, in the port city of Jeddah, and then studied and worked in the UK, where he acquired a British passport.
Mike Scheur, the former head of the CIA’s Bin Laden unit, said the leaking about the nuts and bolts of British involvement was despicable and would make a repeat of the operation difficult. “MI6 should be as angry as hell. This is something that the prime minister should raise with the president, if he has the balls. This is really tragic,” Scheur said.
He added: “Any information disclosed is too much information. This does seem to be a tawdry political thing.”