

Members from the International Atomic Energy Agency (IAEA), wearing white helmets, inspect the emergency power generators at Kansai Electric Power Co's Ohi nuclear power plant in Ohi, Fukui prefecture, Jan. 26, 2012. The IAEA inspection team visited Ohi nuclear power plant on Jan. 26 as part of a review of tests conducted by Japan to prove the safety of its nuclear reactors in the wake of the Fukushima radiation crisis. Issei Kato/Reuters
Employees of Kansai Electric Power Co's Ohi nuclear power plant prepare for an inspection by the International Atomic Energy Agency (IAEA) in Ohi, Fukui prefecture, Jan. 26, 2012. Japan's nuclear disaster has shaken trust in utilities and reminded residents in this rural, mountainous region the risks of radiation, but their heavy reliance on atomic plants for jobs and funds means speaking out remains a taboo. Issei Kato/Reuters
This July 16, 2011 file photo shows Kansai Electric Power Co.'s No. 3 (r.) and No. 4 units of the Ohi nuclear power plant in Ohi, Fukui prefecture, western Japan. A 10-member IAEA team is inspecting the No. 3 and No. 4 reactors at the plant. Kyodo News/AP/File
International Atomic Energy Agency (IAEA) fact-finding team leader Mike Weightman examines Reactor Unit 3 at the Fukushima Daiichi Nuclear Power Plant in Okuma, Fukushima prefecture, northern Japan, on May 27 to assess tsunami damage and study nuclear safety lessons that might be learned from the accident. IAEA Photo/Handout/Reuters
Members of the IAEA fact-finding team examine the diesel generator room at Unit 1 of the Fukushima Daiichi nuclear plant on May 26. The room was flooded by seawater during the March 11 tsunami, and Japanese workers have transferred the water into the containers shown. IAEA/AP
Members of the IAEA fact-finding team visit the Fukushima Daiichi Nuclear Power Plant on May 27 to examine the devastation wrought by the March 11 earthquake and tsunami. IAEA Photo/Handout/Reuters
Waves of tsunami gush into a complex near the Unit 4 reactor at the Fukushima Daiichi nuclear complex on March 11. Workers have yet to bring the plant under control more than two months later. Tokyo Electric Power Co./AP/File
Damaged Unit 3, left, and Unit 4 of the tsunami-crippled Fukushima Daiichi nuclear power plant are seen on March 24. Japanese nuclear regulators trusted that the reactors at Fukushima Dai-ichi were safe from the worst waves an earthquake could muster. Air Phot Service/AP/File
Antinuclear protesters and a Buddhist monk protest outside the headquarters of Tokyo Electric Power Co (TEPCO) in Tokyo on April 5. TEPCO has given up plans to build two more nuclear reactors at its stricken Fukushima Daiichi plant, Executive Vice President Takashi Fujimoto said. The sign the woman holds reads 'Anti-nuclear plants. Never forgive Tokyo Electric Power.' Yuriko Nakao/Reuters
General Electric Chairman and CEO Jeffrey Immelt (l.) speaks with Hitachi President Hiroaki Nakanishi (second l.) and Hitachi Nuclear Power Systems Vice President Akira Maru (third l.) during a meeting with Japanese Economy, Trade and Industry Minister Banri Kaieda in Tokyo on April 4 about the tsunami-stricken Fukushima Daiichi nuclear complex. Koji Sasahara/AP
A woman packs shiitake mushrooms at the Anzai family farm near Fukushima, Japan, on April 5. The mushrooms are grown indoors to reduce contact with radiation produced by the Fukushima nuclear plant 37 miles away. The operator of the plant started paying 'condolence money' on April 5 to victims of the nuclear crisis while it kept pouring radioactive water into the sea. Carlos Barria/Reuters
Nuclear and Industrial Safety Agency spokesman Hidehiko Nishiyama (r.) huddles with his aide during a press conference on the earthquake and tsunami-damaged Fukushima Daiichi nuclear complex, in Tokyo on March 25. Kyodo News/AP
On March 25, a Japanese auxiliary multipurpose support ship, the Hiuchi, pulls a US ship loaded with fresh water that is to be used at the damaged Fukushima Daiichi nuclear power plant. Kyodo News/AP
On March 24, Farmer Sumiko Matsuno (l.) and her friend bag carrots on her farm to eat as she fears no one will buy them due to the current radiation fallout in Fukushima, Japan. Wally Santana/AP
Workers in protective suits conduct a cooling operation by spraying water at the earthquake- and tsunami-damaged No. 4 unit of the Fukushima Daiichi nuclear complex in Okumamachi, Japan, on March 22. Tokyo Electric Power Co./AP
This photo shows the tsunami hitting Fukushima Daiichi nuclear power plant in Okumamachi, Japan, on March 11. Ministry of Land, Infrastructure, Transport and Tourism via Kyodo News/AP
In this photo taken on March 18 and released on March 23 by Tokyo Electric Power Co. via Kyodo News, workers connect transmission lines to restore electric power supply to Unit 3 and Unit 4 at the tsunami-crippled Fukushima Daiichi nuclear power plant in Okumamachi, Japan. Tokyo Electric Power Co. via Kyodo News/AP
Smoke rises from Unit 3 of the tsunami-stricken Fukushima Daiichi nuclear power plant in Okumamachi, Japan, on March 21. Tokyo Electric Power Co./AP
Norio Tsuzumi (r.), vice president of Tokyo Electric Power Co. (Tepco), bows in apology to an evacuee at an evacuation center in Tamura, Japan, on March 22. Public sentiment is such that Fukushima's governor Yuhei Sato rejected a meeting offered by the president of Tepco, the utility that runs the Fukushima nuclear plant. Koichi Nakamura/The Yomiuri Shimbun/AP
A resident explains his fears during a town hall meeting on the impact of radiation exposure from the nearby leaking Fukushima nuclear facilities in Kawamata, Japan, on March 22. Wally Santana/AP
Smoke billows from wrecked Unit 3 at Japan's crippled Fukushima Daiichi nuclear power plant in Okumamachi, Japan. Emergency crews worked to reconnect electricity to cooling systems and spray more water on overheating nuclear fuel at the tsunami-ravaged facility. Tokyo Electric Power Co. via Kyodo News/AP
Tokyo Electric Power Co. Managing Director Akio Komori (l.) cries as he leaves after a press conference in Fukushima, Japan, on March 18. The Japanese government acknowledged that it was overwhelmed by the scale of last week's twin natural disasters, slowing the response to the nuclear crisis. Kyodo News/AP
The top part of the badly damaged No. 4 unit of the Fukushima Daiichi nuclear power plant in Okumamachi, Japan, is shown on March 16. Tokyo Electric Power Co./AP
In this photo made from video footage, a Japan Self-Defense Force helicopter dumps water over the No. 3 unit of the Fukushima Daiichi nuclear power plant in Okumamachi, Japan, on March 17, damaged by an earthquake-caused tsunami on March 11. The Japanese caption reads: '9:52 a.m. Second discharge of water.' NHK TV/AP
Japan's Self-Defense Force helicopter heads to the Fukushima Daiichi nuclear power plant to dump water on the stricken reactor in Okumamachi on March 17. Operators of the quake-crippled plant again deployed military helicopters to douse overheating reactors and combat the rising risk of a catastrophic radiation leak from spent fuel rods. Masaru Komiyaji/Asahi Shimbun/AP
An aerial view shows Fukushima Daiichi nuclear power plant on March 17. Reactors 1 to 4 are seen from right to left in this picture taken more than 18 miles offshore from the site shortly before the start of the water-dropping operation. Kyodo/Reuters
Teams of government specialists at the emergency rescue headquarters frantically analyze data from leaked radiation from the Fukushima nuclear facilities damaged by a major earthquake and tsunami in Fukushima, Japan, on March 16. Wally Santana/AP
The damaged No. 4 unit of the Fukushima Daiichi nuclear complex in Okumamachi, Japan, is shown on March 15. White smoke billows from the No. 3 unit. Tokyo Electric Power Co. via Kyodo News/AP
Medical staff use a Geiger counter to screen a woman for possible radiation exposure in Hitachi City, Japan, on March 16, after she was evacuated from an area within a 12.4 mile radius of the Fukushima Daiichi nuclear plant, where radiation has been released after a massive earthquake and tsunami on March 11. Asahi Shimbun/Reuters
The Fukushima Daiichi nuclear plant is seen in this March 14 satellite image following the magnitude 9.0 earthquake and tsunami in Japan. GeoEye/Reuters
Smoke billows from the No. 3 unit among four reactors at the Fukushima Daiichi nuclear complex in Okumamachi, Japan, on March 15. Tokyo Electric Power Co./AP
A radiation detector marks 0.6 microsieverts, exceeding normal day data, near Shibuya train station in Tokyo on March 15, four days after a strong earthquake damaged a nuclear power plant in Fukushima, Japan. Kyodo News/AP
A baby is checked for radiation exposure levels in Nihonmatsu, Japan, on March 15, following a third explosion at the Fukushima Daiichi nuclear power complex on March 15. Kyodo News/AP
Smoke ascends from the Fukushima Daiichi nuclear plant's Unit 3 in Okumamachi, Japan, on March 14. The second hydrogen explosion in three days rocked Japan's stricken nuclear plant, sending a massive column of smoke into the air and wounding 11 workers. NTV/NNN Japan/AP
The damaged Fukushima Daiichi nuclear facility is shown in a satellite image on March 14. Authorities are struggling to prevent the catastrophic release of radiation in the area devastated by a tsunami. DigitalGlobe/AP
The damaged Unit 1 (l.) and Unit 2 (r.) of the Fukushima Daiichi nuclear plant are seen in Okumamachi, Japan, on March 13. Tokyo Electric Power Co. warned on March 14 that it had lost the ability to cool Unit 2 shortly after Unit 3 exploded, sending a massive cloud of smoke into the air and injuring 11 workers. Kyodo News/AP
Police officers wearing gas masks patrol in the area of the Fukushima nuclear power plant's Unit 1 in Okumamachi, Japan, on March 12, amid fears that a part of the plant could melt down after being hit by a powerful earthquake and tsunami on March 11. Kaname Yoneyama/The Yomiuri Shimbun/AP