Natural disasters can happen anywhere. Should everyone just move inland 20 miles? Get away from the earthquake-prone areas? How about the midwest with tornadoes? We just rebuild - it's all we can do.
I think it will cost $1 trillion to rebuild
You both make good points, but I based my comment on an earlier post which explained that the land that New Orleans is built on is a silt bed which has basically been washing out to sea for some time. I do indeed wonder if the rebuilding should take place on higher ground.