A Meltdown May Be Under Way at Japan Nuclear Power Plant

An official with Japan's nuclear and industrial safety agency told CNN that "a meltdown may be under way at one of Fukushima Daiichi's nuclear power reactors" (the plant that exploded). Earlier, it looked like things would be under control but the company began to experience difficulty cooling the reactor, even… » 3/12/11 6:15pm 3/12/11 6:15pm