General engineering of crops and animal though the manipulation of DNA is producting a revolution in food production. It is also starting a battle between those who believe in its promise and cities who doubt and faer it. The potenrtial to improve the quality and vulue of the vegetables and animals we eat seems unlimited. Such potential benefits notwishstanding, crities fear that geneered products, so called biotects foods, are being rushued to market before their effects are fully understood.