"Two and a half years after the worst nuclear disaster since Chernobyl, the operator of Japan's wrecked Fukushima plant faces a daunting array of unknowns."

"The operator of Japan's stricken Fukushima nuclear power plant said on Monday that contaminated ground water had likely been flowing into the sea, acknowledging such a leakage for the first time."

"OAK HARBOR, Ohio — Davis-Besse is identified in a new economic report as one of a dozen U.S. nuclear reactors most likely to be closed by their utilities before their licenses expire because of changing energy markets, including falling natural gas prices, rising costs of nuclear operations, repairs, and post-Fukushima retrofits."

"As China pushes an aggressive expansion of nuclear power it is running into a major stumbling block - a breakdown of trust, post-Fukushima, in official assurances of public safety."

"TOKYO — The operator of the Fukushima Daiichi nuclear power plant stood ready Thursday to inject boric acid into one of its most heavily damaged reactors after it found steam emanating from the reactor building. The preventive measure would stave off sustained nuclear reactions in the reactor’s damaged core, though officials stressed that such reactions were a remote possibility."

"ST. PETERSBURG, Russia -- So much for the lessons of Fukushima. Never mind oil spills, the Russian Federation is preparing an energy initiative that, if it has problems, will inject nuclear material into the maritime environment."

"Significant progress was made last year in strengthening nuclear safety around the world, the U.N. atomic watchdog said in its annual review, despite the 'challenge' posed by a large number of ageing reactors."

"Its stock is sliding. Its economic future is in question. The company that operated and is now responsible for shutting down the Paducah nuclear fuel plant insists it will meet its obligations to safely and cleanly return the aging facility to its owner, the U.S. Department of Energy, next year."

"Tokyo Electric Power Co. has started taking measures to contain highly radioactive groundwater at the Fukushima No. 1 nuclear plant, but its strategy is based on a theory that is disputed by industry experts."