Chase Stevens/Las Vegas Review-Journal William Boyle of the Department of Energy’s Office of Nuclear Energy, fourth from left, points to the Yucca Mucker during a congressional tour of Yucca Moun …

Chase Stevens/Las Vegas Review-Journal
William Boyle of the Department of Energy’s Office of Nuclear Energy, fourth from left, points to the Yucca Mucker during a congressional tour of Yucca Mountain near Mercury on Saturday, July 14, 2018.