Parts of the latest National Intelligence Estimate on Iraq has been leaked to the press. The general gist of the leak is that the American occupation of Iraq has made America less safe, because it creates more terrorists than we are able to kill.
Naturally, supporters of the Bush administration (examples: WSJ and Robert Kagan) cry that the leak was politically motivated by that den of liberals, the CIA. Apparently, since bin Ladin hated America before the Iraq invasion, that means that the entire Muslim world also hated us before the Iraq invasion, thus proving that the Iraq invasion keeps America safe, because we haven't been attacked since the Iraq invasion (other than 2700 dead American soldiers and 20,000 limbless ones).
Of course, the Bush administration doesn't want to consider the possibility that the CIA doesn't take its orders from Howard Dean. That would imply that both the CIA and Howard Dean base their opinions on some sort of objective "reality."
And reality has a well-known liberal bias.