Science AMA Series: We are physicists Rush Holt and Frank von Hippel, here to answer your technical questions on the Iran Nuclear Deal (and anything else), AMA!

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We recently co-authored an open letter to President Obama, which was signed by several dozen prominent scientists, supporting the nuclear deal with Iran. We are physicists and experts in nuclear issues, and are here to answer questions about the science and technology of producing fissile materials and nuclear weapons, operating nuclear power plants, and monitoring these and other activities to prevent nuclear proliferation, especially as they relate to the proposed Iran deal.

Rush Holt: I am an astrophysicist and currently head of the American Association for the Advancement of Science (AAAS). I was a New Jersey congressman from 1999-2015, and a five-time Jeopardy champion who beat IBM’s supercomputer Watson. I have worked on international security and proliferation issues for many years, both in and out of government.

Frank von Hippel: I am a physicist and professor at the Woodrow Wilson School at Princeton, where I work on nuclear arms control, nonproliferation, and energy issues. I was founding co-chair of the International Panel on Fissile Materials (IPFM), served as assistant director for national security in the White House Office of Science and Technology Policy from 1993-4, and am a MacArthur fellow.

Since there are two of us, we've enlisted a helper to collate our answers, but we'll leave our names so you know who's talking.

Ask us anything! We'll start posting answers around 1pm eastern (5 pm UTC, 10 am PT)

" target="_blank">Science AMA Series: We are physicists Rush Holt and Frank von Hippel, here to answer your technical questions on the Iran Nuclear Deal (and anything else), AMA!