Markets in the port city of Soma, in Fukushima, Japan, are once again selling local seafood. In this file photo, volunteers help clean up a Soma seafood restaurant damaged in last March's tsunami and earthquake. Hiro Komae/AP hide caption

itoggle caption Hiro Komae/AP

A Tokyo sushi restaurant displays blocks of fat meat tuna cut out from a 269kg bluefin tuna. Yoshikazu Tsuno/AFP/Getty Images hide caption

itoggle caption Yoshikazu Tsuno/AFP/Getty Images

A woman wipes tears from her eyes as she smiles after tasting the sake she and her father made — their first batch since the Fukushima disaster forced them to leave their ancestral brewery. NPR hide caption

itoggle caption NPR

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

itoggle 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

itoggle caption AP Photo/Nuclear and Industrial Safety Agency