Its kinda hard to have discussions about Iraq-Al Queida connections, when all the anti-war types react with "that is just a fabrication" to whatever source one presents.
Heck, even if old Saddy himself would hold a press conference tomorrow detailing the cooperation, some guys would still go "that is just a lie, he is lying because of [insert whatever looney reason here, preferably one involving Oil, Haliburton, the Florida recounts, US mid-east policy in 1980 or even better, all four]".
We could have video images of Atta handing out t-shirts to his fellow hijackers on 9-10 with the text "Our terrorist leader went to Iraq and got to stay in Saddams palace, but all I got was this lousy t-shirt" and it wouldnt matter to some of you.
The debate becomes pointless when the knee jerk reaction from the loony left is "you are just making that up".
The WMD's are in Syria btw. And when they show up, you guys will be going with either option a) The US planted them there, or b) those are not the WMD's from Iraq, those are Syrian WMD's.