Government officials say they have designed a burial site that will be free of leaks for at least 10,000 years. Critics, armed with a raft of scientific studies, say that can't be guaranteed. They point to two other nuclear sites that officials once had said would be leak-free for hundreds or thousands of years: the Idaho National Engineering and Environmental Laboratory near Pocatello and the Hanford Site in eastern Washington. Both are leaking already, and radioactive material could make its way into groundwater in just 10 years, according to a report by the National Research Council, an arm of the National Academy of Sciences.
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