Mexico has taken the last step toward finalizing rules that will allow
genetically modified crops to be planted in the country. That has many
farmers in the so-called birthplace of corn worried that GM varieties
could contaminate their fields. Under the rules, GM corn wouldn’t
technically be allowed in certain areas of Mexico considered “centers
of origin” for unique corn plants, but critics nevertheless remain
concerned for crop biodiversity. “This is a step in the government’s
intention to bow to pressure from Monsanto to allow the contamination
of Mexico’s native corn,” said farmer Victor Suarez.

source: 

Reuters