Special to the Herald/Pacific Northwest National Laboratory

Sunday, February 27, 2000

A worker holds up a 94 percent pure plutonium metal button that resembles a hockey puck at the Plutonium Finishing Plant at the Hanford site in this undated historical photo. Plutonium for nuclear weapons no longer is processed at Hanford, but the Department of Energy is looking into whether radiation and other chemicals may have harmed Cold War workers.

2000 Tri-City Herald