Japanese nuclear regulators inspect ground structures at the Ohi nuclear power plant to examine if an existing fault line is active, in Ohi, Fukui prefecture, western Japan, Friday, Nov. 2, 2012. The inspection determines whether the plant should close. Its No. 3 and No. 4 reactors went back online in July, becoming Japan's only operating reactors after all 50 Japanese reactors went offline for inspection following the March 11, 2011, crisis at Fukushima Dai-ichi. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA

Associated Press
Japanese nuclear regulators inspect ground structures at the Ohi nuclear power plant to examine if an existing fault line is active, in Ohi, Fukui prefecture, western Japan, Friday, Nov. 2, 2012. The inspection determines whether the plant should close. Its No. 3 and No. 4 reactors went back online in July, becoming Japan's only operating reactors after all 50 Japanese reactors went offline for inspection following the March 11, 2011, crisis at Fukushima Dai-ichi. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA
Japanese nuclear regulators inspect ground structures at the Ohi nuclear power plant to examine if an existing fault line is active, in Ohi, Fukui prefecture, western Japan, Friday, Nov. 2, 2012. The inspection determines whether the plant should close. Its No. 3 and No. 4 reactors went back online in July, becoming Japan's only operating reactors after all 50 Japanese reactors went offline for inspection following the March 11, 2011, crisis at Fukushima Dai-ichi. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA
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