You probably forgot all about those Iraqi weapons of mass destruction. Just a figment of Bush's imagination and a product of bad intelligence. But he's probably going to get revenge on all of his critics. There's a growing body of evidence that not only do the WMD's exist, but that they were all relocated to Syria just before the invasion. Chinese intelligence was aware of this transfer. There's a further body of evidence growing that Al Qaeda and Iraq did indeed have some pretty close ties. For instance, Iraq provided significant financial support for the Phillipine rebel movement, which are under the direct control of Al Qaeda.

Why have these revelations taken so long to uncover? During the invasion, troops confiscated mountains of paperwork. Credit card receipts. Family photos. Old magazines. Insurance policies. Think about it - what do you keep in your file cabinets? This completely overwhelmed the 2 or 3 Arabic translators with sufficient security clearance to review them all. It's literally taken years to dig through all these documents and find the handful that actually contain useful information. 

The downside of all of this is that it could require a military foray into Syria to produce the physical evidence.