What it would take for the U.S. to secure Iran's highly enriched uranium | 60 Minutes YouTube video by 60 Minutes

Here's the "60 Minutes" piece on Iran's HEU and the example of Project Sapphire removing HEU from Kazakhstan decades ago.
www.youtube.com/watch?v=ev0h...

Excited to be on 60 Minutes tonight discussing Iran’s HEU and other nuclear capabilities!

Examining the Cracks and the Cement in the Sino-Russian Relationship In 2024, John Stanko and Spenser Warren wrote, “Russian Threat Perception and Nuclear Strategy in its Plans for War with China,” where they explained some

China and Russia may be closer today, but the frictions in their partnership have not disappeared. A new look at the relationship asks how durable that alignment really is. (Members Only)

Great discussion of the future of nuclear proliferation and nuclear restraint last night, with a panel of illustrious colleagues. Watch it on YouTube.
iop.harvard.edu/events/nucle...

Great event last night to celebrate the amazing Al Carnesale -- SALT negotiator, expert on nuclear fuel cycles and proliferation, co-leader of the 1980s Avoiding Nuclear War Project, only person to be Dean of the Kennedy School, Harvard provost, and acting President of Harvard at the same time.

Nuclear Proliferation and American Security: The Inaugural Carnesale Convenings This Forum will inaugurate the Carnesale Convenings, a new Belfer Center series in honor of former Kennedy School Dean, Harvard Provost, and UCLA Chancellor Albert Carnesale

Looking forward to joining Graham Allison, Meghan O'Sullivan, Rose Gottemoeller, and Laura Holgate in the HKS Forum tomorrow for a discussion of nuclear dangers and efforts to mitigate them -- the inaugural convening in honor of Al Carnesale.
www.hks.harvard.edu/events/nucle...

Current Challenges For Global Nuclear Governance MTA discussion with Ambassadors

Excited to be hosting former Ambassadors David Nusbaum and Laura Holgate for a discussion tomorrow of the state of global nuclear governance and what to do about it.
www.hks.harvard.edu/events/curre...

Opinion | For Putin, Iran Is Something Close to Irreplaceable

@nicolegrajewski.bsky.social: "Mr. Putin has spent years building a coalition of the discontented around the premise that authoritarian states can outlast Western pressure... Iran, which has absorbed the most pressure and held the longest, is his proof of concept."
www.nytimes.com/2026/04/10/o...

A conflict of attrition: Iran’s bet on asymmetric warfare The Iran war shows how weaker opponents can leverage asymmetric advantages to effect and how stronger opponents may still limit their tactics.

"Thus far, Iran's warfare has to some degree degraded American and Israeli capabilities, increased pressure on Washington, and hampered the global economy [...] But Tehran's strategy has serious limits," writes Spenser A. Warren @spenserawarren.bsky.social.

Boston Public Radio, The Curiosity Desk, & The Culture Show Live Monday April 6, 2026 YouTube video by GBH News

What is enriched uranium, exactly? John Holdren explains how increasing uranium-235 makes it usable for energy—and why Iran’s enrichment toward higher levels raises global concern.

www.youtube.com/watch?v=m8Ev...

هل تتخلى إيران عن حلمها النووي؟ | د.فرانشيسكا جيوفانيني | بدون ورق بلس YouTube video by بدون ورق+

Explore the complex dynamics behind U.S. strikes on Iran’s nuclear sites with Francesca Giovannini, as she unpacks nuclear policy, non-proliferation, and the global security landscape with Bidon Waraq, a popular Arab podcaster:

www.youtube.com/watch?v=Abmz...

Join us next Monday, April 6 at 1:30 PM EST as @matthew-bunn.bsky.social breaks down the real-world art of influencing high-stakes policy, guided by his ‘10 commandments’ for turning expertise into action.

www.belfercenter.org/event/how-in...

Analysts say potential US operation to seize Iran's Kharg Island would be risky The Pentagon is considering the seizure of Iran's Kharg Island. It's a risky operation, and Iran could retaliate by targeting the biggest energy facilities in the Gulf, sending prices soaring.

In an NPR interview, @nicolegrajewski.bsky.social describes Kharg Island as the “crown jewel” of Iran’s oil infrastructure, highlighting the potential consequences of a US seizure:

www.npr.org/2026/03/26/n...

The Stunning Failure of Iranian Deterrence And why it augurs a more dangerous world.

Iran’s weakening deterrence capabilities point to a deeper strategic problem unfolding today.

@nicolegrajewski.bsky.social and @nktpnd.bsky.social unpack the forces behind Iran’s military expansion and the vulnerabilities now coming forward: www.foreignaffairs.com/iran/stunnin...

How Iran Sees the War External escalation, internal consolidation.

"Washington and Israel are right that their bombs have wreaked havoc on Iran’s military capabilities. But if they believe that Tehran is about to keel over, they are probably mistaken."

Mohammad Ayatollahi Tabaar explains, for @foreignaffairs.com: www.foreignaffairs.com/iran/how-ira...

Technology and the Bomb: Evaluating Proliferation Risks in a Rapidly Evolving World At the same time, technological advances, including in artificial intelligence (AI), quantum computing and sensing, additive manufacturing, and nuclear energy, could impact whether and how states purs...

Looking forward to joining some great colleagues -- Jane Darby Menton, Rose Gottemoeller, and Amy McAuliffe -- for a discussion on emerging technology and current nuclear nonproliferation challenges at 2PM Thursday: carnegieendowment.org/events/2026/...

Pakistan-Afghanistan conflict is rooted in local border dispute – but the risks extend across the region Weeks of fighting between Pakistan and Afghanistan has resulted in hundreds being killed.

@rabsaa.bsky.social on Pakistan-Afghanistan conflict: "this is not merely a bilateral border crisis but a layered security contest shaped by cross-border militancy, emerging technologies and competing threat narratives.”

theconversation.com/pakistan-afg...

The Debate - Trump's grounds for concern: Will the US risk lives to take Iran's uranium? The Middle East War is now in its 20th day, with a perceived split in US and Israeli strategy emerging. Donald Trump says Israel bombed Iran's gas field "without his knowledge". Then Trump, perhaps playing...

Mariana Budjeryn, Center for Nuclear Security Policy Research Associate, joins an international panel on @france24.com to discuss the next possible phase of the war in Iran.
Full debate: https://bit.ly/47g9gIN
@mbudjeryn.bsky.social

Briefing—Nuclear Power and Nuclear Powers: Lessons from Ukraine YouTube video by Helsinki Commission

Mariana Budjeryn (@mbudjeryn.bsky.social ), Center for Nuclear Security Policy Research Associate, joins a panel of experts to discuss Russia’s occupation of Ukraine’s Zaporizhzhia Nuclear Power Plant.
🗓️3/16/26 10:30am ET
📡Bookmark the Helsinki Commission livestream briefing:
https://bit.ly/4sElMdo

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IR research on so-called “taboo” weapons often focuses on individual systems or very limited comparisons. In new @jpeaceresearch.bsky.social work w/Dave Allison and @laurensukin.bsky.social, we compare aversions across a broader range of weapons (6).

#OpenAccess: doi.org/10.1093/jopr...

Iran’s nuclear materials and equipment remain a danger in an active war zone The war in Iran has cut off diplomatic efforts to limit the country’s development of nuclear weapons. Securing that material and equipment in other ways would be difficult and dangerous.

My piece on dealing with Iran's HEU and other material and equipment is out. "Only diplomacy can again provide strict limits and effective monitoring in the future. But this war may well have ruined the chances for such diplomatic options for many years to come."
theconversation.com/irans-nuclea...

Why Russia Is Watching Iran Burn The Kremlin is in no hurry to save its closest partner in the Middle East.

“The Kremlin’s impotence in Iran is in keeping with a familiar pattern: when Russia’s friends are in need, Moscow issues strongly worded statements and does little else,” write @alexgabuev.bsky.social, Nicole Grajewski, and Sergey Vakulenko.

Nuclear weapons expert on end of New START YouTube video by Harvard Kennedy School

ICYMI: Short video on the future of nuclear restraint after New START: "Maintaining nuclear deterrence without any nuclear restraint, without any agreements, is just too dangerous."
www.youtube.com/watch?v=ZfDu...

“Iran may decide: If all that didn’t work, we should proceed like North Korea” | CTech Ariel Levite says Iran’s leaders may conclude only nuclear weapons can deter their enemies.

In an interview with leading Israeli business journal Calcalist, Eli Levite warns: Iranian leaders may ultimately reason, “If all that didn’t work, we should proceed, like North Korea, to obtain the ultimate deterrent—nuclear weapons.”

Read more here: www.calcalistech.com/ctechnews/ar...

Europe's Nuclear Umbrella | Cambridge University Press & Assessment

Join MTA next Wednesday, March 18 for a discussion with @profonderco.bsky.social on his newly released book "Europe's Nuclear Umbrella"

For more information: www.belfercenter.org/event/europe...

To purchase the book: www.cambridge.org/us/universit...

The Greatest Dangers May Lie Ahead In an interview, Nicole Grajewski discusses the military dimension of the U.S. and Israeli attacks on Iran.

What are the military risks of U.S. and Israeli strikes on Iran?

@nicolegrajewski.bsky.social discusses the strategic implications in an interview with the Malcolm H. Kerr @carnegiemec.bsky.social.

carnegieendowment.org/middle-east/...

In an episode of The Arms Control Primer, MTA Associate @alexsorg.bsky.social joins @bollfrass.bsky.social & Elena Sokova to examine Belarus’s post-Soviet nuclear disarmament and the implications of Russia deploying nuclear-capable systems on its territory today.
www.iiss.org/podcasts/arm...

The Unintended Consequences of German Deterrence Germany's evolving deterrence posture boils down to continued participation in NATO nuclear sharing and an ambitious conventional rearmament program. Due to its non-nuclear status and a result of dec...

Ulrich Kuhn in his new article for Global Policy: Germany’s evolving deterrence posture, anchored in NATO nuclear sharing and conventional rearmament, raises underexamined strategic risks -- onlinelibrary.wiley.com/doi/10.1111/...

Opinion | The government’s freeze on nuclear energy is thawing The NRC speedily approved a construction permit for TerraPower’s nuclear reactor.

This WaPo editorial on nuclear energy is wrong on so many different levels. 1st, the headline: there was no US government "freeze" on nuclear power. All recent Presidential administrations (including Obama and Biden) actively promoted nuclear energy.
www.washingtonpost.com/opinions/202...

Deep in China’s Mountains, a Nuclear Revival Takes Shape (Gift Article) Satellite imagery of secretive nuclear facilities reveals Beijing’s efforts to expand its arsenal, just as the last global guardrails on nuclear weapons vanish.

In an article by The New York Times, Dr. Hui Zhang reveals how China’s secretive nuclear facilities are advancing sophisticated warhead design, offering new insights into the country’s growing strategic capabilities.

www.nytimes.com/interactive/...