DHS is looking to get in MREs, food, water, etc, and the Superdome refugees will be taken to Houston. They will dewater and then check structures.
On looting, DoD said local law enforcement is for locals to do, with DoD as giving certain backup. If the criminal threat exceeds the capability of the locals, then the NG can work under the direction of the governor in state status to establish and preserve civil order.
Officials said 60% of the LA members of the state guard are available for duty here, and they are using 11000 of them under the control of the governor.