this says it all..

Numerous soldiers also told Army Times that they have been shot at by armed civilians in New Orleans. Spokesmen for the Joint Task Force Headquarters at the Superdome were unaware of any servicemen being wounded in the streets, although one soldier is recovering from a gunshot wound sustained during a struggle with a civilian in the dome Wednesday night.

“I never thought that as a National Guardsman I would be shot at by other Americans,” said Spc. Philip Baccus of the 527th Engineer Battalion. “And I never thought I’d have to carry a rifle when on a hurricane relief mission. This is a disgrace.”
Spc. Cliff Ferguson of the 527th Engineer Battalion pointed out that he knows there are plenty of decent people in New Orleans, but he said it is hard to stay motivated considering the circumstances.

“This is making a lot of us think about not reenlisting.” Ferguson said. “You have to think about whether it is worth risking your neck for someone who will turn around and shoot at you. We didn’t come here to fight a war. We came here to help.”