As much as I hate to argue against thoughtful analysis, sometimes never letting a good crisis go to waste can radically improve chances that others don't die - and at that point I can live with not giving sufficient respect to the death.
I guess I've only seen half-baked solutions come out of crisis thinking. Also, there seems to be a tendency for some parties to put their little "pet project" into effect after a crisis. Since I just traveled, I would suggest the TSA as one of the prime examples of the way the road leads.
[edit: oh come on downvoters, tomjen3 is stating an opinion held by many and it kills any hope of discussion when someone gets downvoted into oblivion]