This story just coming out suggests that AQ may be trying to start things up again:
10 Iraqi soldiers killed in checkpoint attack
The following line is certainly trying to give the impression that the attack was AQ rather than Baathist holdouts or some other element:
"The area around Adhaim has seen previous attacks credited to Islamist militants linked to Al Qaeda, including mass infantry assaults on Iraqi Army and police posts."
Sounds like they could have used some of our air support. Too bad. Sounds like we could have gotten a lot of bad guys.