GMO

Touting its long history and cultural significance, Mexico’s president says genetically modified corn has no place in his country. That puts Mexico and the U.S. on a collision course over a major trade agreement.

Mexico’s plan to ban all genetically modified corn imports has upset U.S. corn farmers, trade groups and officials. The two nations are in talks and have until April 7 to resolve it before the U.S. can take action under the free trade agreement between North American countries.

Genetically modified foods have been on supermarket shelves since the 1990s, but they’ve only required a label for the last year. The USDA says implementation and compliance with the program have been “successful,” while experts suggest consumers aren’t noticing the labels.