 THE CDC SAYS IT'S INVESTIGATING A NEW DEADLY LISTERIA OUTBREAK SPANNING 12 STATES. CBS'S ALEXANDER TIN. THE CDC SAYS IT NOW SUSPECTS THAT FRESH-SLICED DELI MEAT IS TO BLAME FOR A LISTERIA OUTBREAK THAT NOW SPANS A DOZEN STATES. AT LEAST 28 HAVE BEEN HOSPITALIZED AND TWO HAVE DIED IN THE OUTBREAK.