NPR's Gerry Hadden reports traditional Indian medicine men in the southern state of Chiapas, Mexico, are trying to stop transnational companies from what they call bio-piracy -- making off with medicinal plants from the region and then taking out patents for any pharmaceutical potential. The Mayans say that such drug prospecting does not benefit Indian communities. The companies and some scientists say they stand to lose billions of dollars and perhaps the chance to cure deadly diseases.
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