REFUGIO, Texas - With an abandoned Wild West-vintage town of storefronts slumbering just a block from old US 77, tiny Refugio is a place where myth and reality coexist in a ghostly silence. more stories like this Obama faces heat over aide's NAFTA remarks to Canadians Texas, Ohio could decide Dem nomination Canada says didn't misrepresent Obama over NAFTA McCain tags Dems on trade treaty NAFTA seen differently in Ohio, Texas And now this South Texas outpost is swept up in one of the more intriguing tests of myth vs. reality in today's political life: the battle over the so-called...