After Hurricane Irene and the earthquake on the East Coast of the United States, members of the public are reminded to contact the FBI at the National Center for Disaster Fraud (NCDF) if they have any information regarding theft of or fraud relating to U.S. government disaster aid funds.
http://liarcatchers.com/insurance_fraud.html
The NCDF can be reached by calling (866) 720-5721 or e-mailing disaster@leo.gov.