The Grocery Manufacturers Association estimates that GMOs currently are in approximately 80% of conventional processed foods in the United States, but they are not labeled.

Since 2006, 20 to 40 percent of the bee colonies in the United States alone have suffered "colony collapse." Suspected culprits ranged from pesticides to genetically modified food.

Americans have embraced the fruits of biotechnology-in the form of foods based on genetically modified organisms-but Europeans see them as too dangerous for consumers and the environment.