Irradiation is most often used to kill insects, parasites, or bacteria in or on spices, which are typically dried outdoors in before being shipped. Lui Kit Wong/MCT /Landov hide caption

toggle caption Lui Kit Wong/MCT /Landov

A Tokyo Electric Power Co. worker looks at gauges in the control room for Units 1 and 2 at the Fukushima Dai-ichi plant, Wednesday. AP Photo/Nuclear and Industrial Safety Agency hide caption

toggle caption AP Photo/Nuclear and Industrial Safety Agency