This June 13, 2014 file photo shows construction on a new nuclear reactor at Plant Vogtle power plant in Waynesboro, Ga. John Bazemore/AP hide caption
nuclear power
The Three Mile Island nuclear power plant, in Londenderry Township, Pa., was the site of a partial meltdown in 1979. The plant, with its one still-functioning reactor, is having trouble selling its power because it's more expensive than other resources, including natural gas. John S. Zeedick/AP hide caption
Toshiba Corp. President Satoshi Tsunakawa bows during a press conference at the company's headquarters in Tokyo on Wednesday. Toshiba says its American nuclear unit Westinghouse Electric has filed for bankruptcy protection. Shizuo Kambayashi/AP hide caption
The Flamanville nuclear power facility sits on the shore of the English Channel. Officials say a fire at the plan has been contained. Google Maps hide caption
NuScale power wants to build modular nuclear reactors small enough to fit on the back of a truck. NuScale hide caption
After 43 years of cranking out electricity, the Fort Calhoun nuclear power plant is shutting down. The plant was licensed until 2033, but will go offline 17 years earlier than planned. United States Nuclear Regulatory Commission/Flickr hide caption
Employees work on the construction of an "ice wall" last month at the Fukushima Dai-ichi nuclear plant. March 11 marked the fifth anniversary of the magnitude-9.0 earthquake and tsunami that caused meltdowns at Fukushima. Christopher Furlong/Getty Images hide caption
A Tokyo Electric Power Co. staffer measures the radiation level as others work on the construction of an ice wall at the Fukushima Dai-ichi plant on July 9, 2014. Kimmimasa Mayama/AFP/Getty Images hide caption
Water, Soil And Radiation: Why Fukushima Will Take Decades To Clean Up
An aerial view of Tokyo Electric Power Co.'s tsunami-crippled Fukushima Dai-ichi nuclear power plant, on March 11. Kyodo/Reuters/Landov hide caption
The containment vessel for a new nuclear reactor at the Vogtle nuclear power plant under construction near Augusta, Ga., in December 2012. John Bazemore/AP hide caption
An Indian Coast Guard plane flies over hundreds of anti-nuclear activists during a protest last year. The Kundankulam Nuclear Power, still under construction, can be seen in the distance. AFP/AFP/Getty Images hide caption
This is a DigitalGlobe image of the 5-megawatt (electric) reactor at North Korea's Yongbyon facility, Aug. 31, with steam seen coming from the electrical power generation building. DigitalGlobe/ScapeWare3d/via Getty Images hide caption
This photo taken Aug. 6 shows local government officials and nuclear experts at Fukushima after contaminated water was discovered. AFP/Getty Images hide caption
A Russian Akula-class sub in Brest harbor, western France, in 2004. The INS Arihant is said to be based on this Cold War design. Fred Tanneau/AFP/Getty Images hide caption