Harmful Levels Of Radiation

Japan scrambled to prevent nuclear accidents at two atomic plants where reactor cooling systems failed after a massive earthquake, as it evacuated tens of thousands of residents. Tokyo Electric Power, which runs the plants, said it had released some radioactive vapour into the atmosphere at one plant to relieve building reactor pressure, but said the move posed no health risks. (credit: STR/AFP/Getty Images)

No Harmful Levels Of Radioactivity Expected In US

The Nuclear Regulatory Commission says harmful levels of radioactivity are not expected in the United States due to damaged nuclear reactors in Japan.

CBS2 / KCAL9–03/13/2011

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