Interesting discussion about whether or not claims and potential violations of the Emergency Medical Treatment and Labor Act (EMTALA) have occurred in the wake of Hurricane Katrina. I haven't looked into the legal aspects of a potential violations under the actual regulations and whether there is an exemption for disaster situations.
Also I received a special Hurricane Katrina Bulletin from CMS that discussed how health care providers can disclose medical and health information in medical emergencies without violating the HIPAA privacy regulations.