FILE - In this April 3, 2008 file photo, the sun shines on a radioactive hazard warning sign at a landfill used to bury hazardous materials at the Hanford Nuclear Reservation near Richland, Wash. The cleanup of the nation’s largest collection of radioactive waste left over from the production of nuclear weapons was supposed to be nearing an end by now, but 25 years after a landmark agreement was signed to deal with the waste, $30 billion has been spent, and officials are still decades and tens of billions of dollars away from finishing the cleanup of the radioactive mess. (AP Photo/Ted S. Warren, file)
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