FILE - In this May 10, 2017, file photo provided by the Los Alamos National Laboratory, U.S. Secretary of Energy Rick Perry, second from left, accompanied by Laboratory Director Charlie McMillan, second from right, learns about capabilities at the Los Alamos laboratory's Plutonium Facility, from Jeff Yarbrough, right, Los Alamos Associate Director for Plutonium Science and Manufacturing, in Los Alamos, N.M. A Nevada congressman called for U.S. Energy Secretary Rick Perry’s resignation Wednesday, July 10, 2019, after the department acknowledged dozens of shipments of low-level radioactive waste shipped to a site north of Las Vegas may have been mislabeled and out of compliance with safety regulations for years. (Los Alamos National Laboratory via AP, File)
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