I know lots of us have been rethinking our own strategies in the wake of Katrina. As I've said many times before, I live up in the mountains, where we all assume that there will be at least one blizzard a year that "cuts us off from civilization." We all plan accordingly. Most of my evac planning has been based around fast-moving wildfires, although, ironically, I got one of those automated "suggested evac" calls after a screaming blizzard that dumped 6 feet of snow in a day and a half. It took a week to get a plow to us; two days before we saw the first snowmobile. Lacking a dog team and a Yeti guide, we elected to stay put.
The moderator lists several critical points:
1) People who were prepared were frequently mobbed/threatened by those who weren't.By all means, read the whole thread!
2) When help gets there, you may get it whether you like it or not.
3) There seems to be a cumulative psychological effect upon survivors.
4) There is widespread frustration over the lack of communication and empathy by rescuers and local/State government.
5) Expect rescuers (including law enforcement) to enforce a distinctly un-Constitutional authority in a disaster situation.
6) Don't believe that rescuers are all knights in shining armor who will respect your property.