4 sources · first reported Yesterday

The US National Nuclear Security Administration has completed a critical manufacturing step for the B61-13 nuclear bomb, meeting all requirements and finishing three months ahead of schedule. This milestone marks a significant achievement in the development of America's newest nuclear bomb. The 'diamond stamping' certification process has been completed for all canned subassemblies of the B61-13 gravity bomb.
The B61-13 nuclear bomb development is a key part of the US nuclear weapons modernization effort, and its ahead-of-schedule completion demonstrates significant progress in this critical national security program. This achievement has strategic implications for the US nuclear deterrent capability.
How this story unfolded across sources, oldest first.