nuclear weapons


Top Scientists Call for Obama to Take Nuclear Missiles off Hair-Trigger Alert

, physicist & co-director, Global Security

More than 90 prominent US scientists, including 20 Nobel laureates and 90 National Academy of Sciences members, sent a letter to President Obama yesterday urging him to take US land-based nuclear missiles off hair-trigger alert and remove launch-on-warning options from US warplans. Read more >

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How Could a Failed Computer Chip Lead to Nuclear War?

, physicist & co-director, Global Security

The US early warning system is on watch 24/7, looking for signs of a nuclear missile launched at the United States. As a highly complex system with links to sensors around the globe and in space, it relies heavily on computers to do its job. So, what happens if there is a glitch in the computers?

Between November 1979 and June 1980, those computers led to several false warnings of all-out nuclear attack by the Soviet Union—and a heart-stopping middle-of-the-night telephone call. Read more >

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Obama to Hiroshima: Actions, Not Words

, physicist & co-director, Global Security

In Prague in 2009, President Obama committed the United States to reducing the role of nuclear weapons and putting an end to Cold War thinking. It’s time to walk the talk, Mr. President. Read more >

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Science, Religion, and Obama’s Mixed Legacy on Nuclear Weapons

, physicist & co-director, Global Security

Giving another speech on nuclear weapons is not enough. Read more >

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Hair-Trigger Alert Doesn’t Make Sense. Here’s Why

, physicist & co-director, Global Security

In talking with a young colleague recently, I realized he had no idea the U.S. and Russia keep thousands of nuclear weapons on alert, poised to launch 24 hours a day, every day. Luckily we have a video just for him… Read more >

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