This May 13, 2017, photo shows a portion of the Plutonium Finishing Plant on the Hanford Nuclear Reservation near Richland, Wash. Officials say dozens of workers demolishing the 1940s-era plutonium processing plant there have ingested or inhaled radioactive particles in the past year, prompting a halt to the demolition of the plant until a safe plan can be developed. (AP Photo/Nicholas K. Geranios)
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