COLUMBIA, S.C. – Fourteen people in at least nine states have been sickened by salmonella after handling tainted dog food from a South Carolina plant that a few years ago produced food contaminated by toxic mold that killed dozens of dogs, federal officials said Friday. At least five people were hospitalized because of the dog food, which was made by Diamond Pet Foods at its plant in Gaston, S.C., the federal Centers for Disease Control and Prevention said. No pets were sickened, according to the Meta, Mo.-based company. "People who became ill, the thing that was common among them was...