TAMPA, Fla. — On paper, retired FBI agent Tom Simon and former fraudster Matthew Cox probably shouldn't be friends. Simon spent 26 years with the FBI investigating criminals. Cox spent years committing sophisticated bank and mortgage fraud before becoming a federal fugitive and eventually serving 13 years in prison. Both men even appeared on CNBC's American Greed — Simon discussing criminals he investigated and Cox for the considerably less flattering reason of being one of t