Jon Brook Wolfsthal

Jon Wolfsthal is director of the Nuclear Crisis Group, senior advisor of Global Zero, and a member of the Science and Security Board of the Bulletin of the Atomic Scientists. He is a nonresident fellow at Harvard University's Belfer Center for Science and International Affairs and at the Carnegie Endowment for International Peace. He was President Barack Obama’s special assistant and senior director at the National Security Council for arms control and nonproliferation.