Japan Raises Severity Level At Nuclear Plant

Japanese nuclear authorities have elevated the disaster at Fukushima to level 7, the same as the meltdown at Chernobyl 25 years ago. But level 7 in Japan is not the same as it was in Russia. Melissa Block talks to NPR's Richard Harris, who explores the differences between the two biggest nuclear accidents in history.

Source: http://www.npr.org/2011/04/12/135354910/japan-raises-severity-level-at-nuclear-plant?ft=1&f=1007

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