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WASHINGTON, DC - NOVEMBER 15 : People attend a demonstration against the proposed Dakota Access Pipeline outside the US Army Corps of Engineers building on November 15, 2016 in Washington, DC. (Photo by Mintaha Neslihan Eroglu/Anadolu Agency/Getty Images)

WASHINGTON, DC - NOVEMBER 15 :  People attend a demonstration against the proposed Dakota Access Pipeline outside the US Army Corps of Engineers building on November 15, 2016 in Washington, DC.  (Photo by Mintaha Neslihan Eroglu/Anadolu Agency/Getty Images)