Nightly News   |  February 23, 2013

Tanks leaking at Hanford nuclear site

The leaking of radioactive liquids at the Hanford, Wash., Nuclear Reservation is more extensive than previously reported. NBC’s Lester Holt reports.

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>>> trouble for another big program tonight. at this moment the most contaminated nuclear site in the country is leaking a mix of radioactive and toxic material into the soil. the waste is coming from old underground tanks in washington state 's hanford nuclear reservation , a site that produced plutonium for the bombs dropped in world war ii . officials say the leak is not an immediate threat since it will likely take years for the chemicals to reach the groundwater.