Bernie Gunther said:Yes, that's the sort of thing I had in mind. What would a sane policy look like?
If we keep asking that question, we may find broad agreement on an answer.
One way in to it is to ask what Iraq had, and Iran and Al Queda (as a non-state actor) have in common vis a vis the Western interests in that region. One could describe them all as "economic/financial independents", in that they believe that if hooking up to the global economy means subverting their culturally defined conceptions of society/power, then they want to remain seperate from/independent of the global economy as is currently constructed.
If we were to accept that definition, a useful question to ask is "is it rational or justifiable for a nation or culturally distinct region of the world to want to remain outside, or try to set the terms of its relationship with, the global economy?"
Keep 'em coming. You are being ironic I hope? 
One appalling totalitarian state invades another. How was intervening in anyway in the interests of the US public and how were they persuaded?