Nuclear Plant Danger in Japan

This is not good:

"The AFP agency reported that a blast was heard and white smoke seen billowing into the air at one of two power plants which the Japanese government had placed under a state of emergency. Several workers were reported to have been injured."

Nor this:

"The Tokyo Electric Power Company said it did not believe a meltdown was underway but Ryohei Shiomi, an official with Japan's nuclear safety commission, said that it was possible."