In this Friday, April 1, 2011, photo released by Tokyo Electric Power Co., workers for the company experimentally spray adhesive synthetic resin over the ground at the Fukushima Dai-ichi nuclear power plant in Okumamachi, northeastern Japan. TEPCO expects the resin spraying to prevent dust exposed to radiation materials from spreading out of the premises. (AP Photo/Tokyo Electric Power Co.)
The headquarters building of the Tokyo Electric Power Co., also known as Tepco, at the base of the communications tower in the middle, is pictured in Tokyo on Monday, March 28, 2011. The company, which runs the Fukushima Dai-ichi nuclear power plant at the center of the country's nuclear crisis, has issued a series of botched radiation readings from the plant in recent days. (AP Photo/Greg Baker)
In this photo released by Tokyo Electric Power Co. (Tepco), gray smoke rises from Unit 3 of the tsunami-stricken Fukushima Dai-ichi nuclear power plant in Okumamachi, Fukushima Prefecture, Japan, on Monday, March 21, 2011. (AP Photo/Tokyo Electric Power Co.)
In this photo released by Tokyo Electric Power Co. (TEPCO), gray smoke rises from Unit 3 of the tsunami-stricken Fukushima Dai-ichi nuclear power plant in Okumamachi, Fukushima Prefecture, Japan, on Monday, March 21, 2011. Officials said that TEPCO temporarily evacuated its workers from the site. At left is Unit 2 and at right is Unit 4. (AP Photo/Tokyo Electric Power Co.)
This October 2008 photo shows the Fukushima No. 1 power plant of Tokyo Electric Power Co. at Okuma, Fukushima prefecture, northern Japan. Japan's top government spokesman says the country has issued a state of emergency at the nuclear power plant after its cooling system failed. There was no radiation leak. (AP Photo/Kyodo News)
