The Bush Doctrine

People are having a field day over Palin not knowing what the Bush Doctrine is, but I think that is much less the issue than her actual answer. She ignored Bush's (and McCain's) stated policy of preemptive attack and instead responded with an answer that virtually any reasonable person would agree with - that a response would be justified if Americans were threatened with imminent attack. Intentionally or not, she conflated a reasonable position with the intolerable Bush/McCain position, instead of making a distinction between them. And he totally let her get away with it - no follow up at all, no pointing out that the scenario she described is not the Bush Doctrine nor is it the McCain position. So we move on as if they're the same somehow - the reasonable and the unreasonable, without any debate or discussion. Very troubling!