Preemption is always a scary issue. There are disadvantages to both sides. On one side, by not taking action, we could be allowing the next 9/11 to happen. On the other, we could be attacking someone who had no ill intentions whatsoever. The question is this, do we sit, or do we go? If we sit, we have to make sure we aren't growing complacent. If we go, we have to tread carefully.