FBI Special Agent in Charge of Dallas Field Office, Robert E. Casey, left, shakes hands with W. Rick Copeland, Director of the Medical Fraud Control Unit of the Office of the Texas Attorney General, ... more 
FBI Special Agent in Charge of Dallas Field Office, Robert E. Casey, left, shakes hands with W. Rick Copeland, Director of the Medical Fraud Control Unit of the Office of the Texas Attorney General, next to a chart outlining a healthcare fraud scheme after a news conference Tuesday, Feb. 28, 2012, in Dallas. Officials announced federal charges in what they called the largest case of medical fraud in U.S. history involving $375 million. (AP Photo/LM Otero) less 
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Associated Press | Photo By LM Otero
Tue, Feb 28, 2012 3:14 PM EST