It seems to me that Bush was planning to invade Iraq even before they invaded Afghanistan...but 911 forestalled that.

I think it's the USA that needs to be inspected for WMDs. If they won't allow such inspection, and if they won't dismantle or surrender those weapons, then it is incumbent upon the rest of the World to impose santions. If the sanctions don't work, then we are going to have to invade the USA with an international coalition and bring about regime change. That's all there is to it. These guys have shown in the past their willingness to use WMDs to destroy innocent lives, and we have to stop them for the safety and security of the World. They can deny all they want, they can wriggle and twist and prevaricate, but they've GOT WMDs in the USA, and we will prove that if we have to by any means necessary.