
The National Nuclear Security Administration said Tuesday it completed the first production unit of a refurbished submarine-launched nuclear warhead, setting the stage for a mass-production run that could begin early next year and which will fit the weapon with a new detonation system rated for 30 more years at sea. Workers at the Pantex Plant in Amarillo, Texas, finished the proof-of-concept article for the W88 Alt-370 on July 1, the National Nuclear Security Administration (NNSA) wrote in a press release.…