New START, the last remaining arms control treaty capping U.S. and Russian nuclear arsenals, expires on February 5. This marks the beginning of a dangerous new era. For the first time in several decades, there will be no limits on nuclear weapons, less visibility into Russian nuclear weapons activities, and fewer tools to manage a crisis between the world’s two largest nuclear powers.
Funding from the Bezos Earth Fund will support the creation of an orderbook for new nuclear reactor builds in the United States.
New NTI | bio paper calls on tool developers and other AIxBio stakeholders to implement a managed access approach—allowing only validated users to access those biological AI models that contribute to biosecurity risks—to help reduce the risk that such tools will be deliberately misused to cause harm.
As the last remaining U.S.-Russia nuclear limitations treaty expires on Feb. 5, an overwhelming majority of Americans (91 percent) say the United States should negotiate a new agreement with Russia to either maintain current limits on nuclear weapons or further reduce both countries’ arsenals.
NTI encourages the United States and the Russian Federation to continue to abide by New START’s limits on intercontinental-range nuclear weapons past its scheduled expiration on February 5, 2026.
Participants examined how NWFZs can be productive geopolitical tools amid mounting challenges, including great power competition, disruptive technologies, and a weakening global nonproliferation and disarmament architecture.
Rapid globalization has created unprecedented systemic vulnerabilities and the potential for nuclear use to trigger cascading failures and far-reaching economic collapse.
Students and early-career professionals from 19 countries across five continents entered the 2025 competition. The challenge called for innovative papers on how to define “biological weapons” in today’s ever evolving biothreat landscape.
A national security leader with more than 30 years of experience in defense policy, strategic planning, and international security, Secretary Wormuth brings an extensive record of leadership and service at the Department of Defense, the White House, and prominent think tanks.
The two-day meeting brought together more than 20 senior experts and scholars to exchange views on the evolving global nuclear security landscape and explore opportunities for continued cooperation.
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