>>The actual letter is here. John Negroponte, Josh Bolton and Steven Hadley were copied on the letter. I doubt anyone in the Bolton or Hadley camps would have leaked the letter. Somebody in the intelligence community with ties to Negroponte's office - possible.<<
I don't know... Negroponte was one of the guys helping the contras he doesn't seem like the leaking of covert ops kind of guy.
But I guess anybody can have a bad staffer.
That's pretty fast action if it was FOIA. The letter is dated May 18th, I assume this year since not stated otherwise.