They should have put their stores up in the attic with them - of course many lost their attics.
People in the Superdome were told to bring five days of food and water - a family of six would have needed to carry fifteen gallons, minimum. And a family so prepared would have to give it up to the unprepared or have it taken.
The government should have been in their with water right after the storm. Their is a swimming pool on the roof of a tall building near the Dome - it would be a source of drinkable water.
Don't they have anyone one looking at the satellite photos, surveying what their is to work with?
Their too busy trying to affix the blame to actually fix the problem.