As Zack Beauchamp points out, this depiction of the war is breathtakingly dishonest. The Iraq War was not a response to 9/11: this was a war America chose, officially based on reports of weapons of mass destruction that were implausible at the time, and that have since been proven false.
With 16 intel agencies all concluding that WMDs were in Iraq, the finding of Sarin-filled artillery rounds during the campaign, the scandal about how American troops affected by chemical weapons were ignored by the VA and the recent finds of more weapons in Iraq, it seems reasonable to conclude it was all some crap that George Bush made up.
As history teaches, tell a big lie often enough, it becomes accepted as the only truth permitted to be known.
WMDs in Iraq, Globull warming - the tactic is effective because Satan sticks to what works.