Camel’s Nose USDA Secretary Tom Vilsack appeared to discount Mexico’s plan to ban glyphosate and GMO corn by saying it would not affect U.S. feed corn being shipped south. However, the U.S. ships a certain amount of white corn to Mexico for human consumption and, more importantly, Mr. Vilsack’s agricultural constituency sees the Mexican proposal as the camel’s nose under the tent. After all, Mexican President López Obrador says the goal is self-sufficiency and consequently the ban is based on protectionism. It also violates the obligation to sound science and the USMCA included stronger language on biotechnology. The Secretary seemed to assure that the matter would come up under USMCA consultations, but Ameri...