FILE - In this Feb. 28, 2012 file photo, stricken Unit 3 building of Tokyo Electric Power Co.'s Fukushima Dai-ichi nuclear power plant is seen at Okuma town in Fukushima prefecture, northeastern

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FILE - In this Feb. 28, 2012 file photo, stricken Unit 3 building of Tokyo Electric Power Co.'s Fukushima Dai-ichi nuclear power plant is seen at Okuma town in Fukushima prefecture, northeastern Japan. Steam or vapors appeared to be coming from the damaged reactor building at Japan's tsunami-crippled nuclear plant Thursday, July 18, 2013, but the plant operator said radiation levels were steady. (AP Photo/Yoshikazu Tsuno, Pool) less 

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Associated Press
Thu, Jul 18, 2013 8:06 PM EDT