Hans Kristensen

I am Director of the Nuclear Information Project at the Federation of American Scientists where I monitor and inform about the status of the world’s nuclear weapons arsenals. I’m also an Associate Senior Fellow to SIPRI. I co-author the Nuclear Notebook in the Bulletin of the Atomic Scientists and the World Nuclear Forces overview in the SIPRI Yearbook, and I’m a frequent consultant to the news media and institutes on nuclear weapons and arms control matters.

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2,737 viewsDec 10, 2019

The New START Treaty Keeps Nuclear Arsenals In Check And President Trump Must Act To Preserve It

With time running out quickly, here's why Moscow and Washington should act to extend the New START treaty. It is important for national security and works as intended to limit strategic nuclear weapons.

3,540 viewsMay 7, 2019

Is The Pentagon Exaggerating Russian Tactical Nuclear Weapons?

The Trump administration's Nuclear Posture Review claims the number of Russian non-strategic nuclear weapons number is increasing. That seems to distort what the U.S. intelligence community knows, for the apparent purpose of creating political support in Congress to pay for new nuclear weapons.

6,369 viewsMar 6, 2019

House Armed Services Committee Members Show Alarmingly Poor Knowledge On Nuclear Weapons

A congressional hearing on U.S. nuclear policy was intended to address important issues but descended into partisan posturing, with surprisingly uninformed questions from the House lawmakers tasked with oversight of nuclear forces that demonstrated a worrisome lack of basic knowledge.