FDA to permit irradiation of spinach, lettuce Nearly two years after E. coli bacteria traced to California-grown spinach killed three people and sickened 205, the federal government says it will allow producers of fresh iceberg lettuce and spinach to use irradiation to control food-borne pathogens and extend shelf life. The Food and Drug Administration is amending the food-additive regulations to provide what it calls the safe use of ionizing radiation for just the two leafy greens. The FDA also has received petitions seeking permission to use irradiation for other lettuces and many other foods. The government is allowing the practice in the wake of the major E. coli outbreak in 2006 and numerous other problems with food safety and recalls. But this won't be first time such a technique has been used on food. Consumers have eaten irradiated meat for years....