Grains of doubt

摘要

Genetically altered crops slipping into the food chain; foreign countries placing restrictions on imports; farmers in rural America panicking. It has happened before, with corn. Now America's rice-farmers are facing a similar drama. In late July, American agriculture officials and food safety authorities learned that unapproved rice had been found in commercial bins in Arkansas and Missouri. The rice-known as LLRICE601-had been genetically modified to resist certain herbicides by Bayer CropScience, which is based in Germany.