my thoughts:
on the looting and shooting:
the people stuck in new orleans are largely (but not all, of course) impoverished african-americans who have lived through generations of poverty and many (but not all, of course) have a deep distrust of police and state authority ... new orleans is already one of the most violent cities in the country, so couple this with days of anarchy and lack of supplies, and that area will just turn into a war zone, and we're starting to see that right now with the shooting of helicopters and national guardsmen ... a rep from the fairfax search and rescue team said he was deployed for three weeks after the tsunami and didn't see any civil unrest, but this is a much smaller scale and this is already turning into lord of the flies ... easy access to guns are of course an issue, but it just says more about the mindset of these people more than anything else
on living in unsustainable areas:
i grew up on the west coast of florida, and i still have no sympathy for people who build where mother nature tells you you shouldn't build, this includes:
barrier reefs
beaches
deep in forests
in floodplains
the real issue here is that ALL OF US pay for these peoples' arrogance ... in florida, taxpayers pay hundreds of millions to keep barrier reefs and beaches exactly how they "should be" when in reality nature should and constantly does reshape the land in these areas ... if you spend $10million for a house on a beach, you should realize that that land could and probably will simply wash away eventually ... instead all of us pay millions to keep nature at bay and "protect" our beaches and barrier reefs ... the same thing is happening with the "beach replenishment" at rehoboth/dewey this past spring/summer
you can extrapolate this example to the others i listed ... the denver area has seen a huge population explosion in the last half century or so, and people move out into forests where forest fires routinely ravage the land ... now that a few people live out there, we all have to spend millions to battle the fire and "save" their homes
i'm not saying that people shouldn't build in new orleans, but you can see where i'm getting at