The National Nuclear Security Administration (NNSA) said it completed ‘Diamond stamping’ of the new B61-13 nuclear bomb, meaning it has met all the requirements of the rigorous certification process. The U.S. National Nuclear Security Administration (NNSA) announced on Jun. 8, 2026 the “diamond stamping” of all the Canned Subassemblies (CSA) of the new B61-13 gravity nuclear bomb. The milestone wa...