Daniel R. Levinson, Inspector General U.S. Department of Health and Human Services, right, pauses during a news conference Tuesday, Feb. 28, 2012, in Dallas. Looking on in background are Bill Corr, ... more 
Daniel R. Levinson, Inspector General U.S. Department of Health and Human Services, right, pauses during a news conference Tuesday, Feb. 28, 2012, in Dallas. Looking on in background are Bill Corr, Deputy Secretary U.S. Department of Health, left, and United States Attorney Sarah R. Saldaña of the Northern District of Texas. 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