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The Pantex Plant assembled the “first production capability unit” of the W88 Alt-370 submarine-launched warhead, a precursor to the first production unit intended to prove the entire warhead design is ready for mass production, the Pantex Plant said. The phrase “first production capability unit” did not appear in official National Nuclear Security Administration (NNSA) documents until this March, when the term debuted in the agency’s 2021 budget request. The agency’s recent Stockpile Steward and Management Plan, an annual declassified summary of…
