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New NTI Tutorial Tackles the U.S. Nuclear Budget

Our new interactive tutorial covers the basics on the U.S. nuclear budget, from the programs associated with it and how much is spent. They join a set of award-winning tutorials at

NTI and Partners Announce: The Santa Fe Nuclear Weapons Summit

NTI is working with partners Creative Santa Fe, N Square, and Pop Tech to host The Santa Fe Nuclear Weapons Summit in December. This three-day summit is designed to engage a new type of discussion about nuclear security and proliferation.

Our Experts

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NTI experts can comment on issues and news related to nuclear weapons, nuclear materials, biological threats and other international security and nonproliferation issues. NTI also benefits from the expertise of our international board of directors.

Joan Rohlfing

President and Chief Operating Officer, NTI

A founding NTI staff member, Joan Rohlfing became president of NTI in January 2010, after nine years as NTI's senior vice president for programs and operations.

Andrew Bieniawski

Vice President, Material Security and Minimization

Andrew Bieniawski joined NTI after 25 years of service with the U.S. Department of Energy and the National Nuclear Security Administration.

Samantha Pitts-Kiefer

Senior Program Officer & Director, Global Nuclear Policy Program

Samantha Pitts-Kiefer joined NTI in June 2012 and serves as Director of the Global Nuclear Policy Program.