They are going to make them believe every day is the day, because it is.
US capacity and nature of warfighting has changed significantly since the early 90's. Too much emphasis on the 'Art" of war and not enough on actual combat to change the willpower of an enemy.
Iraq, especialy after 911, even if not heavily involved, and moreso if directly implicated, will be directed to employ assymetric warfare with smaller WMD.
IMHO, the real threat is Iraq as a suitcase WMD factory working hand in hand with Islamic extreme militants who blend into the western culture with a fervid desire to emulate suicide bombers.
The BBC polls interestingly enough paint the typical adversary to US opposition in Iraq as only targeting oil interests. The last 5 or so staff exercises I've observed of military interests in the Mideast all had significant oil terminal/pipelines depicted on maps even for enlisted and company grade officers to observe, an NONE of them even noticed any importance to their existence. Bottomline is that the US military is by no means interested in the oilfields. Their targets aren't in anyway focused on oil control nor mechanisms implied to control the land or flow of oil in the region.
Their only focus is on opposing military threat.
With this stated, when the US military is quiet and moving to act, with heavy info warfare, this is a very very, strong indicator that a very grave threat of Iraqi WMD exists.