Meeting in Chihuahua’s Sierra Tarahumara last weekend, representatives of more than 20 indigenous Raramuri and Tepehuan communities vowed to defend the traditional corn that nourishes their cultures and livelihoods. At the Third Annual Corn Fair held in Ejido Bacabureachi, indigenous leaders agreed to implement measures aimed at protecting their corn from genetically modified (GM) varieties. Among the proposals considered was a demand to require that any corn entering the Sierra Tarahumara for any purpose have a certificate of origin.