https://www.youtube.com/watch?v=d0_vVczQxr0

https://youtu.be/d0_vVczQxr0?t=234

The Hanford Story - Plutonium Finishing Plant
HanfordSite
Apr 19, 2012
Hanford produced nearly two-thirds of the nation's plutonium from the 1940s to the 1980s, 
and the Plutonium Finishing Plant was a key part of that mission. 
Today, the plant is Hanford's most hazardous facility and poses a monumental cleanup challenge 
to the Department of Energy and contractor CH2M HILL Plateau Remediation Company