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FILE - Navajo Nation President Buu Nygren addresses a crowd at an indoor sports arena, Tuesday, Jan. 10, 2023, in Fort Defiance, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Felicia Fonseca, File)

FILE - Navajo Nation President Buu Nygren addresses a crowd at an indoor sports arena, Tuesday, Jan. 10, 2023, in Fort Defiance, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Felicia Fonseca, File)

FILE - The front entrance at the Energy Fuels Inc. uranium Pinyon Plain Mine is shown on Wednesday, Jan. 31, 2024, near Tusayan, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Ross D. Franklin, File)

FILE - The front entrance at the Energy Fuels Inc. uranium Pinyon Plain Mine is shown on Wednesday, Jan. 31, 2024, near Tusayan, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Ross D. Franklin, File)

FILE - , ore pile is the first to be mined at the Energy Fuels Inc. uranium Pinyon Plain Mine Wednesday, Jan. 31, 2024, near Tusayan, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Ross D. Franklin, File)

FILE - , ore pile is the first to be mined at the Energy Fuels Inc. uranium Pinyon Plain Mine Wednesday, Jan. 31, 2024, near Tusayan, Ariz. Navajo President Buu Nygren vowed to carry out a plan to enact roadblocks to prevent the transportation of uranium ore through the reservation while the tribe develops regulations to cover what are the first major shipments of uranium through its land in years. (AP Photo/Ross D. Franklin, File)