It appears that device-maker Boston Scientific has a new set of troubles. The Boston Globe just reported:Stepped-up government scrutiny of Boston Scientific Corp. stems from heightened concern over medical safety and disappointment that the company made new missteps after resolving previous problems with the Food and Drug Administration, analysts said yesterday.The Natick medical-device maker, which has been working to settle patent suits and federal investigations dating back years, recently was notified of fresh investigations begun by the Department of Justice and the Securities Exchange Commission into problems that forced it to recall implantable heart defibrillators this month.Boston Scientific said March 15 that it had halted shipments and recalled unsold units of seven brands...