
In the summer of 2025, the Federation of American Scientists will host a first-of-its-kind bootcamp to communicate and pass on its practices to the next generation of open-source nuclear analysts. This bootcamp, generously funded by the Carnegie Corporation of New York, aims to help lower the barriers to entry into this field, democratize open-source research practices, and foster a collegial community of experts among successive cohorts. Learn more about this opportunity and apply here.
Our Global Risk team focuses on addressing and preventing the events and threats that could permanently cripple or destroy humanity. Among them: nuclear war, the next global pandemic, biological attack, and even a collision with a massive near-earth object. Humanity must proactively develop and pursue sound policies to protect against these dangers, including through global cooperation.
China is NOT a nuclear “peer” of the United States, as some contend.
China’s total number of approximately 600 warheads constitutes only a small portion of the United States’ estimated stockpile of 3,700 warheads.
Dr. Lim will help develop, organize, and implement FAS’s growing contribution in the area of catastrophic risk including on core areas of nuclear weapons, AI and national security, space, and other emerging technologies.
Moreover, the recent decrease in UK government transparency regarding the status of its nuclear arsenal and modernization program reflects a worrisome global trend.
Even without weapons present, the addition of a large nuclear air base in northern Europe is a significant new development that would have been inconceivable just a decade-and-a-half ago.




