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peace arch, US-Canada border

Another chance to step up: Canada and the Nuclear Ban Treaty

The recent G7 summit in Quebec marks one of the lowest points in the history of the relationship between Canada and the United States. The war of words there between President Donald Trump (and his advisers) on the one hand, and Prime Minister Justin Trudeau on the other, followed a growing disagreement over the terms … Continued
atomic bomb casualty commission hiroshima 1947

Do tactical nukes break international law?

Even using the lowest-yield nuclear weapons would inflict superfluous injury and unnecessary suffering—breaching a fundamental principle of the law of war.

A team of Howard University researchers wants to know how disinformation impacts Black people

Black voters are frequent targets of online disinformation. They were in 2016 when Russia's Internet Research Agency created fake Black activist profiles in its effort to interfere in that year's presidential election and they were in 2020, when scammers tried to dissuade people form getting absentee ballots. Howard University's Keesha Middlemass, a political science professor, and her colleagues have set out to explore how Black communities in Washington, DC, are impacted by disinformation.
A sign showing Cheyenne, Wyoming city limits

Nuclear disarmers can’t forget the communities that rely on military spending

American cities that host nuclear missiles rely on them for economic survival, so disarmament plans must include social protections for those communities.

As election looms, Trump adds to the long story of conspiracy theory in US politics

Trump, like no other president in recent memory, is a card-carrying conspiracy theorist. What's in it for him?

Watch now: The brain-computer interface is coming and we are so not ready for it

Watch a Bulletin virtual program in which Paul Tullis and Amy Orsborn, moderated by Dawn Sinclair Shapiro, give the inside scoop on the exciting progress and potential pitfalls of the brain computer interface. In this conversation you’ll hear how the Bulletin article sharing the name with this program came together, how neuroscientists balance ethical concerns … Continued

The existential threat debate scorecard you’ve been waiting for

The final presidential debate of the 2020 campaign is upon us, and so is the Bulletin's existential threat scorecard.
Great Wall of China, partial silhouette

US-China rivalry: When great power competition endangers global science

Science won’t be able to solve global issues without US-China scientific collaboration.
A billboard in South Africa.

Corona-free? How disinformation could be clouding the true pandemic picture in Africa

World Health Organization data shows Africa accounts for about 4 percent of global COVID-19 cases, a surprisingly low number. In some countries misinformation may be obscuring the true impacts of the pandemic.
The brick wall of a fallout shelter

The hidden stumbling block to progress on nuclear weapons

Policy makers seem to conflate nuclear weapons’ symbolic meaning with their utility as weapons, and that has made it harder to abolish them.

The brain-computer interface is coming, and we are so not ready for it

"There’s no fundamental physics reason that someday we’re not going to have a non-invasive brain-machine interface. It’s just a matter of time. And we have to manage that eventuality.” — neuroscience expert Jack Gallant
A Facebook post.

Coronavirus disinformation adds conspiratorial fuel to a volatile Middle East

Misinformation has been a part of political life in the Middle East and North Africa for years; the coronavirus era has proved no exception. A volatile region where three wars are being fought can ill afford coronavirus-related lies and nationalistic pandemic one-upmanship.

Comparing nuclear accident responses at Three Mile Island, Chernobyl, and Fukushima

The following comparison of three accidents reveals that independent oversight and a strong safety culture are paramount to rapid response, organized evacuation and repopulation, and clear communication to local publics during and after an accident at a nuclear power plant.
The “Calutron Girls” of the Y-12 Nuclear Security Complex at Oak Ridge, Tennessee

A call for antiracist action and accountability in the US nuclear community

For many institutions in the nuclear community, the true work of becoming antiracist still lies ahead of them: accepting and rectifying their own complicity in the problem.
sunflower sea star

Sea stars pushed to edge of extinction by warming oceans

The once-common treasure of the tide pool is at risk of being eradicated along the Pacific coast, by a deadly combination of disease and warming oceans caused by climate change.

COVID-19 to have negligible impact on climate crisis

The emissions reductions caused by the pandemic are not going to help us much on their own
An AI system described the Wu-Tang Clan as a baseball players.

How to make AI less racist

A prominent dataset of images that researchers used to train artificial intelligence (AI) algorithms to recognize objects was taken down after a scholarly paper revealed that some of the categories it contained were labeled with offensive terms for women and minorities. The story highlights how bias can creep into the AI development cycle at various points.
Bulletin May 1946 edition

Prominent nuclear scientists did not recommend the atomic bombings of Japan

The Bulletin of the Atomic Scientists co-founder Eugene Rabinowitch warned in June 1945 against dropping the bombs on Japan. What would he say about Hiroshima and Nagasaki today?
atomic bomb dome army military hiroshima nuclear bomb

Counting the dead at Hiroshima and Nagasaki

How many people really died because of the Hiroshima and Nagasaki bombings? It’s complicated. There are at least two credible answers.
B-52 bombers in the Arizona desert,

Arms control 2.0? With open source tools, desktop sleuths can go where governments won’t

The steady undermining of arms control agreements provides an opportunity to rethink how governments and citizens promote transparency and military cooperation using 21st century technologies.