FILE - This March 11, 2012 file photo shows storage tanks for radiation-contaminated water in the compound of the tsunami-crippled Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima Prefecture, northeastern Japan. Tokyo Electric power Co. (TEPCO), the operator of the plant said Saturday, April 6, 2013 that it was moving tons of highly radioactive water from a temporary storage tank to another after detecting signs of leakage, in a blow to the plant's struggles with tight storage space. TEPCO said about 120 tons of the water are believed to have breached the tank's inner linings, some of it possibly leaking into the soil. TEPCO is moving the water to a nearby tank at the plant - a process that could take several days. (AP Photo/Kyodo News, File) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, HONG KONG, JAPAN, SOUTH KOREA AND FRANCE