The US has become a climate bully. The sabotage of the IMO shipping levy is the most dramatic example. The pressure on Vanuatu to stop its legal efforts is the most recent. My new piece for @foreignpolicy.com foreignpolicy.com/2026/02/18/t...

It me. I discovered about 10 years ago that when other people said they picture things in their head, they are not being metaphorical. I have never been able to conjure a mental picture of anything, apparently I am on the extreme side. AMA. #aphantasia www.nature.com/articles/d41...

Happening soon! Register to watch online (or attend in person) at 0900 this morning. carnegieendowment.org/events/2026/...

My two favorite things from the Twin Cities: Prince and the Revolution.

@joereid.bsky.social @chrisvfeil.bsky.social As your resident nuclear policy Gary who has actually "been there," I volunteer as tribute for the now inevitable The House of Dynamite THOB episode.

President Trump's interview on 60 Minutes did very little to clarify his stance on the United States resuming full-scale nuclear tests for the first time in more than three decades. Let's look at some of his statements. 1/11

Resuming U.S. nuclear testing, as President Trump has suggested, “would do more to benefit our adversaries than the United States," says @coreyah.bsky.social on @npr.org. More from Corey on why: www.npr.org/2025/10/30/n...

NEW: Here's the basics of what a return to nuclear testing would look like for the United States. www.npr.org/2025/10/30/n...

Beijing’s stunning display of nuclear power at its recent military parade is striking. In @economist.com, I explain why China should resist fueling arms races and instead champion a rules-based nuclear order. www.economist.com/by-invitatio...

Do you remember? The very first day of Metstember. Let’s go @mets.com!

Shorter...

Don't forget that foundational investments in the #NNSA's nonproliferation capabilities mean we have off-the-shelf tools for out-of-the-ordinary situations. With at least 400 kgs of enriched uranium in the wind, what would a regime collapse mean for global security? 1/5

Great discussion @pranayrvaddi.bsky.social and @ebrewer.bsky.social. Thank you for your attention to this matter!

Great thread from James.

President Trump says he’ll decide on if the U.S. will strike Iran’s nuclear program in the next two weeks. VP for Studies at the Carnegie Endowment for International Peace @coreyah.bsky.social and MSNBC military analyst Ret. Lt. Gen. Stephen Twitty discuss. www.msnbc.com/weekends-wit...

I’m very worried about the plan for NNSA’s nonpro funding and share why here. Bad for security and bad for deterrence!

Joe is a great communicator, so this is a real compliment.

It will be very interesting to see how Russia engages with Iran in light of their January 2025 Treaty on Comprehensive Strategic Partnership. I can’t imagine Putin would be happy about any requests that would undermine military objectives in Ukraine.

Waking in Europe to the news from the Middle East. The attack by Israel on Iran’s nuclear infrastructure seems as inevitable as it was avoidable.

Reminder to RSVP for our upcoming event: Has the World Arrived in a New Nuclear Age? @nktpnd.bsky.social discusses this question (& his new book) with @coreyah.bsky.social, @atomicbell.bsky.social , and @davidehoffman.bsky.social. May 22, 10am EDT, hybrid. carnegieendowment.org/events/2025/...

If you're in the DC area, please join me at the @carnegieendowment.org on May 22 for an event launching my new book, 'THE NEW NUCLEAR AGE: AT THE PRECIPICE OF ARMAGEDDON' (with @coreyah.bsky.social, @atomicbell.bsky.social, and @davidehoffman.bsky.social): carnegieendowment.org/events/2025/...

Excited for Reuters's "SMR & Advanced Reactor 2025" from 12-13 May in Nashville (reutersevents.com). I'm chairing a Keynote Panel on May 12 on "Nuclear Power and Big Tech: Meeting the Surging Demand from Hyperscalers and Data Center" ft. TVA, Siemens Energy, AECON Group Inc. and Oracle.

And Mallory Stewart! Now you can’t say no!

For those at the opening day of the #NPT PrepCom today, come to Conference Room A at 3:00 for a panel hosted by the @thebulletin.org featuring @atomicbell.bsky.social, Tom Countryman and me! We will discuss key issues facing the review cycle.

My first @carnegieendowment.org writing! On Iran, the outcome may be different but the process could benefit from a look back.

🚨 It's almost here! #NUKECON 2025 begins this Monday. Take a look at the agenda, panels, and speakers (and register to attend virtually) here:

Welcome to the "Don't use 'Long, Strange Trip,' in the headline of your article about the Grateful Dead receiving the Kennedy Center Honor," challenge.