Frankenfood! It's the evil-sounding name given to genetically modified crops by organic enthusiasts fearful that altering nature's design will result in irreparable damage to either the environment or our bodies. And there is a good chance that they're right. The fight against GM crops has been intensifying of late, with the USDA approving modified alfalfa early this year, despite protests from big organic (which might be less worried about the potential risks and mostly worried about their organic certification). Because a cow that eats GM alfalfa is no longer organic, no matter how it was raised, and GM alfalfa has the extra ability to spread like kudzu--even to places where it's not supposed to be, like an adjacent field of original-gene alfalfa.
But these fights should not give the impression that we are about to step over a precipice into a world full of GM crops. We did that in 1996. See this chart from the USDA: