The authoritative guide to ensuring science and technology make life on Earth better, not worse.

Nuclear Weapons

Some long-term effects of UNSCOM: People are important, or, therein lies much of the problem

By Charles A. Duelfer | Chemical Weapons, Nuclear Weapons

Nikita Smidovich at a 2015 Global Conference on Biological Threat Reduction in Paris. Photo by World Organisation for Animal Health.

Perspectives on UNSCOM and UNMOVIC: An interview with Nikita Smidovich

By Henrietta Wilson | Nuclear Risk, Nuclear Weapons

North Korea’s military parade on October 10, 2020

Nuclear Notebook: How many nuclear weapons does North Korea have in 2021?

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Weapons

Iranian President Rouhani in April visiting the exhibition of nuclear achievements. Credit: Official website of the President of the Islamic Republic of Iran. https://president.ir/en/120598.

Iran’s uranium gambit is a dangerous negotiating tactic

By Naysan Rafati | Analysis, Nuclear Risk, Nuclear Weapons, Opinion

An unarmed Minuteman III intercontinental ballistic missile launched during a test

A millennial’s view: ICBMs are ridiculous

By Noah C. Mayhew | Climate Change, Nuclear Risk, Nuclear Weapons, Voices of Tomorrow

J. Robert Oppenheimer. Credit: James Vaughn. CC BY-NC-SA 2.0. Accessed via Flickr.

Four senators ask Biden to clear Oppenheimer’s name

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons, Opinion

Maj. Gen. William F. Burns at the United States Army War College. Photo provided by the family and used with permission.

William Burns, behind-the-scenes advisor in US-Soviet nuclear talks, dies at 88

By Lawrence J. Korb, Arnold S. Kohen | Nuclear Risk, Nuclear Weapons, Opinion

Time exposure showing the tracks of the missiles’ six dummy warheads, white-hot from air friction, arriving 8,000 km down-range near Kwajalein Atoll in the Western Pacific. The domes in the foreground house tracking telescopes. As a part of the post-Cold War reductions, the Minuteman IIIs were downgraded to one warhead each. Credit: US Air Force photos from National Security Archive and US National Archive collections respectively. Public domain image.

Biden should end the launch-on-warning option

By Frank von Hippel | Analysis, Nuclear Risk, Nuclear Weapons, Opinion

After Geneva: Will Self-Interest Suffice?

By Walter C. Clemens Jr. | Analysis, Nuclear Risk, Nuclear Weapons, Opinion

What role will America’s European allies play after the Biden-Putin summit?

By Ivanka Barzashka | Analysis, Nuclear Risk, Nuclear Weapons, Opinion

Next step in arms control: Putin must be pragmatic

By John Erath | Analysis, Nuclear Risk, Nuclear Weapons, Opinion

Biden and Putin signaled an openness for substantive talk

By Robert Rosner | Analysis, Nuclear Risk, Nuclear Weapons, Opinion