Y-12 NSC(@y12nsc):This week, Y-12 hosted Assistant Secretary Tim Walsh from @ENERGY's Office of Environmental Management. Joined by @NNSANews @NNSAWilliams, they toured our facilities used to maintain the nation’s nuclear weapons stockpile and its critical deterrence mission.

Y-12 NSC

@y12nsc

The official Twitter account of the Y‑12 National Security Complex. Y-12 maintains the safety, security and effectiveness of the U.S. nuclear weapons stockpile.

가입 August 2009

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Y-12 NSC@y12nsc

2026.08.05 21:45

This week, Y-12 hosted Assistant Secretary Tim Walsh from @ENERGY's Office of Environmental Management. Joined by @NNSANews @NNSAWilliams, they toured our facilities used to maintain the nation’s nuclear weapons stockpile and its critical deterrence mission.