FAS

On the Passing of Former FAS Board Member David Hafemeister

05.11.23 | 1 min read | Text by Federation of American Scientists

The Federation of American Scientists (FAS) is saddened to learn of the recent death of David Hafemeister, a former FAS Board member who served the organization for 8 years. Dr. Hafemeister was 88 years old.

Hafemeister’s decorated career working on nuclear proliferation and arms control included stints in the office of Senator John Glenn, the State Department, and the National Academy of Sciences (NAS). In 2022, Hafemeister received the University of Illinois Alumni Achievement Award for his work on international arms control.

Daniel Correa, FAS CEO, said “David Hafemeister spent his long and impressive career dedicated to things FAS is still focused on: sound public policy and cutting-edge science. We honor his contributions.”

Steven Aftergood, former director of FAS’ Government Secrecy Project, said “[David] was part of a generation of scientists that took public policy very seriously, and he was deeply involved in nuclear arms control. He worked on the issues from multiple angles — as an advocate (with FAS and APS), as a policy maker at the State Department, and as an influential congressional staffer. I think he represented the heritage of FAS at its best.”

The Federation of American Scientists, founded in 1945, is a catalytic, non-partisan, and nonprofit organization committed to using science and technology to benefit humanity through national security transparency and policy agenda-setting. While continuing its proud tradition of nuclear weapons analysis, FAS now also works to embed science, technology, innovation and experience into a wide range of policy areas to build a healthy, prosperous and equitable society.

publications
See all publications
Global Risk
Blog
The Pentagon’s (Slimmed Down) 2025 China Military Power Report

On Tuesday, December 23rd, the Department of Defense released its annual congressionally-mandated report on China’s military developments, also known as the “China Military Power Report,” or “CMPR.” The report is typically a valuable injection of information into the open source landscape, and represents a useful barometer for how the Pentagon assesses both the intentions and […]

01.09.26 | 7 min read
read more
Global Risk
Report
On the Precipice: Artificial Intelligence and the Climb to Modernize Nuclear Command, Control, and Communications

Successful NC3 modernization must do more than update hardware and software: it must integrate emerging technologies in ways that enhance resilience, ensure meaningful human control, and preserve strategic stability.

01.08.26 | 2 min read
read more
Global Risk
Blog
What’s New for Nukes in the New NDAA?

The FY2026 National Defense Authorization Act (NDAA) paints a picture of a Congress that is working to both protect and accelerate nuclear modernization programs while simultaneously lacking trust in the Pentagon and the Department of Energy to execute them.

12.18.25 | 5 min read
read more
FAS
Blog
“I’ve always been around people who make a living by caring”: an interview with Impact Fellow John Whitmer

For Impact Fellow John Whitmer, working in public service was natural. “I’ve always been around people who make a living by caring.”

12.18.25 | 3 min read
read more