Its the black gold and complete control over Iraq that the US wants!!There are no weapons of mass destruction!!Even if there are then US was stupid enough to give them what they needed in the past to be able to produce them.
And US arent stupid.Or US gave Iraq the technology to have the ability to create those weapons of mass destruction so later they can find an excuse to attack Iraq or they are liars or they were stupid and gave them what they needed for such a production just like that.
They havent found any weapons of mass destruction.The attack was planned all along.
After the attack it will give the chance for the clergy in other islam countries(SA) to start bigger propaganda,fanaticize,cause a religion explosion against the west(problems against any non-muslim citizen) and give another excuse for the US to attack SA this time.Which they want to control as they are completely out of control and the conditions the US asked the Saoudiarabians to put into act were completely thrown away(Change their education,reduce the power of the clergy etc so religion wouldnt have control over people).
The islam clergy expects the attack to Iraq because its their chance to gain more power in other islam countries.