I get more angry than sad when thinking about Katrina. I can still drive around the cities where I live and see blocks and blocks of empty lots with little more than foundations on them. When I go inland a little farther, I can see abandoned houses that because of the delay in insurance reimbursement and FEMA's updated flood maps sat empty and wet for many months. The end result is a structure that might have been able to have been saved is now good for scrap. I hear residents of New Orleans whine that their houses were flooded. Most of the ones in my area got washed away. I didn't live here when Katrina hit, but I had vacationed here, so I can see the difference.
I get angry at the people who demand the federal government step in and do something, when in reality it is the local people/agencies/community that needs to step up and provide assistance.