BBC security correspondent Gordon Corera says UK officials believe that US law enforcement rather than the White House is the likely culprit for the leaks.
That would be the FBI. Something very rotten is going on in the FBI. Does the New York Times need to be put on the Terrorist Watch List? Are they publishing these reports of classified information as a means to signal terrorists of what law enforcement knows so they can take counter-measures in the US to escape or change or expedite their plans?