SAVANNAH, Ga. - The first government search in decades for a hydrogen bomb lost off the Georgia coast in 1958 found no trace of the sunken weapon, the Air Force said Friday. The report — issued nine months after scientists tested radiation levels off Tybee Island — concluded that there is no danger of a nuclear blast from the 7,600-pound bomb and that the weapon should be left where it is, buried somewhere in the muck. "We still think it's irretrievably lost. We don't know where to look for it," said Billy Mullins, an Air Force nuclear weapons adviser who...