nytimes.com | On a recent sunny morning at the Big Y grocery here, Cynthia LaPier parked her cart in the cereal aisle. With a glance over her shoulder and a quick check of the ingredients, she plastered several boxes with hand-designed stickers from a roll in her purse. “Warning,” they read. “May Contain GMO’s (Genetically Modified Organisms).”
For more than a decade, almost all processed foods in the United States — cereals, snack foods, salad dressings — have contained ingredients from plants whose DNA was manipulated in a laboratory. Regulators and many scientists say these pose no danger. But as Americans ask more pointed questions about what they are eating, popular suspicions about the health and environmental effects of biotechnology are fueling a movement to require that food from genetically modified crops be labeled, if not eliminated.