William Safire goes on the offensive, insisting that the Iraq-Mohammed Atta connection is still valid. He says that Atta did meet an Iraqi intelligence officer in Prague, and that the CIA is covering it up in order to cover their own asses over their screwups and their "inability to conduct covert operations."
Now, I don't have any way of knowing who's correct, but, as Safire says, the people saying the meeting did take place -- i.e., the Czech government -- have no apparent reason to lie, while the CIA does. Moreover, the fact that nobody in the Administration will deny it on the record speaks volumes.
Of course, in the end it shouldn't matter; Saddam needs to go, as soon as possible. Whether he was specifically involved in 9/11 is beside the point. He's an aggressive expansionist tyrant actively searching for weapons of mass destruction. So the only thing that this information can be used to accomplish is to quiet the Europeans down when they explain why we can't and shouldn't invade. But there's no possible way to shut them up, anyway, and even if we had absolute proof of Iraq's involvement, there would be plenty of European objections to our actions.