WASHINGTON – There are mixed signals coming from Mexico about the fate of a proposed mega-port in Baja California for mainly Chinese goods that would be shipped on rail lines and "NAFTA superhighways" running through the U.S. to Canada. The port at Punta Colonet, planned as a major container facility to transfer Asian goods into America's heartland, got at least a temporary setback when a Mexican businessman announced a competing project in which he was seeking to secure mineral rights in the area. Gabriel Chavez, originally one of the principal movers behind the port plan, now says there are significant...