A nonprofit federal data tracker says the U.S. government filed a record number of health-care fraud cases during the latest federal fiscal year.  Southern Illinois federal prosecutors helped lead the way in pursuing charges against such white-collar scammers.  The Transactional Records Access Clearinghouse at Syracuse University says in a new report that 377 new prosecutions were opened during the fiscal year ending last October.  That’s up 3 percent from the previous year and 7.7 percent from five years ago.  The clearinghouse says prosecutions that the U.S. Attorney’s Office in southern Illinois opened led the nation per-capita.  That’s more than eight times the U.S. average.  Those behind the report say the latest numbers may reflect that federal authorities are devoting more resources toward attacking health-care fraud.