. . that the U.S. knew full well Pakistan was managing Bin Laden, and that if they mentioned anything about the raid to Pakistan, Bin Laden wouldn't be there.
Bin Laden, confident that Pakistan was managing his account, and would let him know if anything was going down, and get him out of there, was caught off his guard.
So, maybe the CIA isn't quite as dumb as they look?
And, Pakistan got so pissed because they thought they had Bin Laden reserved for their own purposes, and they got outsmarted by stupid Americans.