Genetically modified (GM) foods have been around for decades. Created by modifying the DNA of one organism through the introduction of genes from another, they are developed for a number of different reasons—to fight disease, enhance flavor, resist pests, improve nutrition, survive drought—and are mainly found in our food supply in processed foods using corn, soybeans, and sugar beets, and as feed for farm animals. Across the country and around the world, communities are fighting the cultivation of genetically engineered crops. Are they safe? How do they impact the environment? Can they improve food security? Is the world better off with or without GM food?