"No one can solve this problem alone, but together we can change things for the better."
Lipi Shetty
Matthew Sharp advises ACA on our work on multilateral nuclear arms control and new military technologies.
Matthew is currently a senior nuclear fellow at the Center for Nuclear Security Policy within MIT’s Security Studies Program. From 2009 to 2025 he served at the U.S. Department of State, most recently as acting deputy assistant secretary for nuclear affairs in the Bureau of Arms Control, Deterrence, and Stability. He also served as Director for Iran Nuclear Issues on President Biden’s National Security Council staff from 2021 to 2022.
https://www.armscontrol.org/blog/2026-01-27/greg-thielmann-steps-away-conversation-occasion-his-fourth-retirement
January 27, 2026
https://www.armscontrol.org/blog/2025-12-11/china-signals-continuity-nuclear-policy-paper
December 11, 2025
https://www.armscontrol.org/act/2025-12/news/us-weapons-complex-safety-board-risk
December 1, 2025
https://www.armscontrol.org/act/2025-12/news-briefs/conference-middle-east-wmd-free-zone-convenes
December 1, 2025
https://www.armscontrol.org/act/2025-11/news-briefs/nuclear-ban-treaty-crosses-majority-threshold
November 1, 2025