Bulletin of the Atomic Scientists, November 10, 2025

Posted: 11th November 2025

November 10, 2025

A recently declassified document includes comments by the Nuclear Regulatory Commission on a State Department cable discussing high fissile content uranium and IAEA safeguards. (Illustration by François Diaz-Maurin. Source: US NRC)

Declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel

A recently declassified document from nearly 50 years ago reveals an urgent need for an international review of small modular reactors that require fuels using uranium enriched from 10% to less than 20% uranium 235, writes Edwin Lyman. Read more.

Can Latin America find common ground at COP30?

After more than a decade, global climate negotiations are returning to Latin America, writes Bulletin climate change editorial fellow María de los Ángeles Orfila. Starting November 10, the Amazonian city of Belém do Pará will become the epicenter of COP30, the United Nations’ annual climate summit. Read more.

IN THE NEWS

“We are in a new nuclear age”

For Francophone Bulletin readers: nuclear affairs editor François Diaz-Maurin spoke to Mediapart about Donald Trump’s announcement regarding a possible return to American nuclear weapons tests. Read here.

EVENT RECORDING

Experts React: Netflix’s ‘A House of Dynamite‘

Last week, nuclear experts joined the Bulletin to answer questions raised by A House of Dynamite, from how the government would really react in the film’s scenario, to what other nuclear films they suggest to watch next. Watch here.

Recent articles

• The ‘Zapad’ exercise and how Lukashenko learned to love the Bomb
• A radical act of cinematic restraint: How to understand the ending of ‘A House of Dynamite’
• Box office bombs: What I learned watching 20 nuclear films in a month
• The “House of Dynamite” sequel you didn’t know you needed
• Michael Mann to Bill Gates: You can’t reboot the planet if you crash it

QUOTE OF THE DAY

“We’re definitely seeing an expansion of conditions ripe for tropical storms and hurricanes. While the western Caribbean is certainly an area that has been looked at late in the hurricane season for potential development, these ocean temperatures that we saw there [during Hurricane Melissa] were ranked in the top three, all time observed.”

— John Morales, meteorologist, “Expert sounds alarm as deadly storms spiral out of control,” Katie Phang, MeidasTouch

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