Link: Flit(tm): Solidarity.
The logistics of moving doctors in for an operation like this is huge. You normally can't write a prescription for penicillin if you don't have a state license. Federal projects are one of the exceptions for that. The issue of malpractice suits is another worry. People are likely to be in a litigious mood and the "where were you two days ago" attitude is tailor made for trial lawyer exploitation and massive lawsuits. This doesn't even start to cover the issue of how your normal malpractice carrier tends to freak out if you practice "naked" in another state especially if you're not licensed there.
An interesting take on the aftermath of Katrina. I find it incredible that volunteer doctors should have to worry about the risk of being sued by those they have given up time and money to help.