By now many Texans have heard about the proposed “NAFTA Superhighway,” which is also referred to as the trans-Texas corridor. What you may not know is the extent to which plans for such a superhighway are moving forward without congressional oversight or media attention. This superhighway would connect Mexico, the United States, and Canada, cutting a wide swath through the middle of Texas and up through Kansas City. Offshoots would connect the main artery to the west coast, Florida, and northeast. Proponents envision a ten-lane colossus the width of several football fields, with freight and rail lines, fiber-optic cable lines,...