Four years ago the Mexican government first verified that GM maize had contaminated native maize grown and developed by indigenous farmers in at least two Mexican states, Oaxaca and Puebla. A new study of Mexican and US researchers reports no GM traces in native maize in one area of Oaxaca. "Absence of detectable transgenes in local landraces of maize in Oaxaca, Mexico (2003-2004)" was published in the Proceedings of the National Academy of Sciences (US).</p><p><a href="http://www.etcgroup.org/article.asp?newsid=521">ETC Group: Industry Exploits New Study on GM Contamination in Mexico</a></p><p><a href="http://www.pnas.org/cgi/reprint/0503356102v1">Ortiz Garcssa, Ezcurra, Schoel, Acevedo, Soberon and Snow, PNAS: Absence of detectable transgenes in local landraces of maize</a></p><p><a href="http://www.pulseofscience.org/pnasstatement">Ignacio Chapela et. al: Response to PNAS article failing to detect transgenes in maize from Oaxaca, Mexico</a>