BROOKLYN — As presidential rumors circulate, Mayor Michael Bloomberg's fight against gun dealers in five states — Virginia, Georgia, South Carolina, Ohio and Pennsylvania — has ignited a debate over states' rights. NYPD statistics show 90 percent of guns used in crimes can be traced to out-of-state sales, so the city dispatched private investigators to make "straw purchases" from retailers whose guns were recovered in crimes here. In an illegal straw sale, one... (GunPolicy.org)