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Hardball

How bad is Japan’s latest nuke setback?

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A radiation leak in Japan's crippled nuclear reactor *could* signal that the reactor core has been breached. Although it's still unclear where the radiation is leaking from, the news is certainly another setback in efforts to get the nuclear plant under control. James Acton of the Carnegie Endowment for International Peace joins guest host Chuck Todd to discuss.Mar.26.2011

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