FILE - In this May 7, 1953, file photo, Navajo miners work at the Kerr McGee uranium mine at Cove, Ariz., on the Navajo reservation in Arizona. Kerr-McGee left abandoned uranium mine sites, including contaminated waste rock piles, in the Lukachukai mountains of Arizona and in the Ambrosia Lake area of New Mexico. The Lukachukai mountains are located immediately west of Cove, Ariz., and are a culturally significant part of the Navajo Nation. This site is among thousands that are part of the $5.15 billion settlement with Anadarko Petroleum Corp. with approximate amount of funding for cleanup efforts and details about the sites, in information provided by the Justice Department. (AP Photo)
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