 A dispute panel under the U.S.-Mexico-Canada agreement is expected to rule this fall on Mexico's ban on GM corn. It is a very high-stakes case. Andrew Brandt, director of trade policy for the U.S. Grains Council, says protecting the use of GM technology to a top export market for the U.S. is critical. They are able to unfairly or unjustly stigmatize the entire biotechnology and plant science industry.