there was an interesting discussion on the local political talk show about the federal government not being able to intervene in any state emergency resulting from a natural catastrophe without aid first being requested from the state governments.
I dont know about it and no one had any concrete answers.
One thing is for certain, as 9/11 changed the way the game is played with national security, so too will this disaster change the way the states and the federal government behave and communicate with each other in crises.