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Controversy continues to rage over whether foods from plants modified with molecular genetic engineering techniques should have to be labeled as such. The battle has been fought for years in the media, Congress, state legislatures, federal courts and through referendum issues. Most mandatory-labeling proposals have failed, and none is currently in effect–for good reason: They fail every test–scientific, economic, legal and common sense. That hasn’t prevented the more ignorant and ideological legislators from continuing to try.