GM grass suddenly starts producing cyanide gas, kills 15 out of 18 cattle within hours
cbsnews.com/8301-201_162-57459357/gm-grass-li...
cbsnews.comPosted Jun 23, 2012, 11:43 PM UTC
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cbsnews.comcbsnews.comPosted Jun 23, 2012, 11:43 PM UTC