(CNN) -- Vermont's governor on Thursday signed a bill into law that will require the labeling of genetically modified foods -- hailing it as the first such law in the nation. Under the new law, food offered for retail sale that is entirely or partially produced with genetic engineering must be labeled as such by July 2016. "Vermonters take our food and how it is produced seriously, and we believe we have a right to know what's in the food we buy," said Gov. Peter Shumlin. "More than 60 countries have already restricted or labeled these foods, and now one...