I answer that question in the negative in my lastest essay at Open Source Politics.
I think we face a serious risk that the extreme claims of the “Bush Doctrine,” combined with the rocky progress of the occupation of Iraq, will lead to the sort of overgeneralization among progressives that followed the War in Vietnam. Even if this particular war turns out to have been a bad idea, and even if some of the folks around Bush have a truly scary streak of military adventurism near the core of their being, the general proposition that a nation must always wait to be attacked before defending itself seems to me awfully hard to defend.