Don't Get Fooled Again The corn market took a brief dive on a report that Mexico would ban imports of biotech corn, but it shouldn't have even blinked once. Mexico depends upon the U.S. for about one-third of its corn consumption. Proximity and freight costs make it the best bargain. Although Brazil became the world's largest exporter of corn last year as a result of the drought in the U.S., it is no alternative since, like the U.S., most of Brazil's corn production is biotech after jumping by 33 percent from 2011 to 2012. There is not a good market alternative and so a ban on imports would cause a spike in food costs in a country where over half the population is in poverty. A local judge has ruled against domestic planting of transge...