Genetically engineered foods and animals are now widespread in supermarkets. We are swapping genes between the animal and plant kingdom with reckless abandon. Their safety is untested and we're conducting a global experiment that is risky. Novel changes created by modifying genes has advantages but also consequences. It also has potential impacts on the environment and its ecosystems that are already worrisome. Nearly all supermarkets now carry GMO products and don't even have to tell us.