Japan faces escalating nuke threat, meltdowns may occur

The No. 3 reactor at the Fukushima No. 1 nuclear power plant is seen in this still image taken from NHK news program on March 13, 2011. Tokyo Electric Power Co., the utility supplier, notified the government early Sunday morning that the No. 3 reactor at the No. 1 Fukushima plant had lost the ability to cool the reactor core. The reactor is now in the process of releasing radioactive steam, according to top government spokesman Yukio Edano.   (Xinhua/NHK)