By SARAH BRUMFIELD (AP) — A loaded gun was found in North Carolina U.S. Rep. Madison Cawthorn's carry-on bag at an airport security checkpoint Tuesday — the second time he has been stopped with a gun at an airport in the past 14 months, officials said. When Cawthorn went through checkpoint D at Charlotte Douglas International Airport with the gun, a 9 mm Staccato C2, around 9 a.m., Transportation Security