FILE - This March 20, 2011 aerial photo made by an unmanned drone and released by AIR PHOTO SERVICE shows the crippled Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima prefecture, northern ... more 
FILE - This March 20, 2011 aerial photo made by an unmanned drone and released by AIR PHOTO SERVICE shows the crippled Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima prefecture, northern Japan. From left are Unit 1, partially seen; Unit 2; Unit 3 and Unit 4. (AP Photo/AIR PHOTO SERVICE) less 
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Associated Press | Photo By AIR PHOTO SERVICE
Sat, Jul 2, 2011 10:07 AM EDT