FILE - A caution sign is shown on a road on the Hanford Nuclear Reservation on June 2, 2022, in Richland, Wash. (AP Photo/Ted S. Warren, File) SEATTLE (AP) — For much of the 20th century, a sprawling ...

SEATTLE — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first atomic ...

SEATTLE (AP) — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first ...

The Hanford Nuclear Reservation in Washington state produced plutonium for most of America's nuclear arsenal through the end of the Cold War FILE - A caution sign is shown on a road on the Hanford ...