Congressmen, including Rep. Dan Newhouse, R-Wash., second from left, arrive at the south portal of Yucca Mountain, Nev., for a tour in 2015.
Congressmen, including Rep. Dan Newhouse, R-Wash., second from left, arrive at the south portal of Yucca Mountain, Nev., for a tour in 2015. John Locher Associated Press
Congressmen, including Rep. Dan Newhouse, R-Wash., second from left, arrive at the south portal of Yucca Mountain, Nev., for a tour in 2015. John Locher Associated Press