Quietly but systematically, the Bush Administration is advancing the plan to build a huge NAFTA Super Highway, four football-fields-wide, through the heart of the U.S. along Interstate 35, from the Mexican border at Laredo, Tex., to the Canadian border north of Duluth, Minn. Once complete, the new road will allow containers from the Far East to enter the United States through the Mexican port of Lazaro Cardenas, bypassing the Longshoreman’s Union in the process. The Mexican trucks, without the involvement of the Teamsters Union, will drive on what will be the nation’s most modern highway straight into the heart of...