
The National Nuclear Security Administration (NNSA) “before November 2018” moved roughly half a ton of weapon-usable plutonium to the Nevada National Security Site from the Savannah River Site, in Aiken, S.C., the agency said Wednesday in a bombshell court filing. The plutonium is part of a 1-metric-ton cache a federal judge in South Carolina ordered the NNSA to move out of that state by Jan. 1, 2020. The agency plans to keep about half of that plutonium at the Nevada…