A U.S.-Mexico-Canada dispute settlement panel says it will not accept comments from Canadian NGOs in a dispute over Mexico’s policies on genetically modified corn, sparking outcry from groups backing Mexico’s position, though the panel also removed an earlier restriction it had placed on NGO input.
Last month, the panel said it had accepted 11 of 14 requests by nongovernmental entities to provide comments on the dispute, launched by the U.S. in August. At the same time, it called on one…