Me too. I'd like to believe it, but it seems a little too pat. I'm sure it was an authentic document, but it may have been authentic disinformation. A Ba'athist plants something backing all of Bush's arguments in his own files, then there's a big brouhaha in the U.S., then the story gets discredited and Bush's credibility takes a hit.
I would guess that the administration is being extremely careful with this one.