FILE - In this Sunday, March 13, 2011 file photo, residents evacuated from areas surrounding the Fukushima nuclear facilities damaged in Friday's massive earthquake are checked for radi

 

              FILE - In this Sunday, March 13, 2011 file photo, residents evacuated from areas surrounding the Fukushima nuclear facilities damaged in Friday
FILE - In this Sunday, March 13, 2011 file photo, residents evacuated from areas surrounding the Fukushima nuclear facilities damaged in Friday's massive earthquake are checked for radiation exposure in Koriyama city, Fukushima prefecture, Japan. The disaster at the Fukushima Dai-ichi nuclear complex in Japan two years ago has heightened worry about how well U.S. communities can protect themselves from a major release of radiation. When a tsunami cut off power and nuclear fuel melted, more than 150,000 people fled the Fukushima area, many from well beyond 12 miles, according to Japan's Education Ministry. U.S. officials recommended that Americans in Japan stay 50 miles back. (AP Photo/Wally Santana)