Starting in July 2016, Vermont will require labeling on foods containing genetically modified organisms (GMOs). Governor Peter Shumlin signed the law on Thursday, setting the stage for a major battle between activists and food manufacturers. As The Economist notes, Vermont is home to more organic farms than any other state per capita, and its the first state to take such a firm stance on the issue. Connecticut and Maine each have labeling laws that will only trigger if and when neighboring states put similar regulations in place. Consumers have always been able to avoid genetically modified foods simply by picking organic products, critics point out. They insist a mandated label program will drive up prices at the supermarket and fear shoppers will unfairly view the text — \produced with genetic engineering\ — as some kind of warning. Vermonts decision is a significant victory for the pro-label group, though its expected to meet stiff resistance and no shortage of legal challenges.