Manuel Valdes

Associated Press

A sign welcomes drivers to Hanford Nuclear Reservation in Benton County Tuesday, May 9, 2017, in Richland, Wash. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II.

Tunnel Collapse Raises Alarms About Nuclear

The toxic remnants of the Cold War are being stored in haphazard and unsafe conditions, and time is running out to deal with the problem.