In what appears to be a nanny-inspired last-ditch effort to find a link between genetically modified (GM) foods and disease, the British government has asked retailers to provide information on GM foods they sell. The government wants to see if there are any increases in health problems in areas where people buy more GM foods. Even if there were a legitimate question of the safety of GM foods (and there isn’t), as a senior professor in epidemiology at Birmingham University rightly points out, “So much else is going on in these patients that there is no way you would be able to calculate a cause and effect relationship, or a non-cause and effect relationship.”