Federal GMO Labeling Law Seeks to Preempt State GMO LawsIt’s mandatory labeling in name only. It discriminates against the poor. And it is clearly a gift to Big Food. For weeks now, Sens. Pat Roberts (R-KS) and Debbie Stabenow (D-MI) have been working on a GMO labeling bill that would pre-empt Vermont’s mandatory labeling law. Late last week they finally reached a compromise, and it’s not good. The bill requires the labeling of packaged food containing GMOs in one of three ways: an electronic code that consumers can scan; a USDA-developed symbol; or a label. The bill leaves it to manufacturers to decide which of the three methods they prefer. Now guess which method Big Food will choose? We have no doubts that they will choose the electronic code that can only be read with a scanner. They know that few will want to do this and even fewer will be able to.