The U.S. Justice Department has launched a sweeping probe into alleged criminal misuse of millions of dollars in grants to state public safety agencies, including the chief medical examiner's office and local police departments, officials revealed yesterday. Gov. Mitt Romney's Public Safety Secretary Edward Flynn admitted his office is cooperating with the Justice Department criminal probe, after alerting the feds to ``dozens'' of grants that local agencies had wrongly received or used for unintended purposes. ``It was our judgment that a number of these grants had been awarded in violation of federal guidelines,'' Flynn said. ``The grants did not appear...