Dr Ian J Stewart
@ian-j-stewart.bsky.social
🏴🇬🇧ExecDir James Martin Center for Nonproliferation Studies DC @miis Past @DefenceHQ, @warstudies. Nonpro, emerging tech, China. Nuc engineer. Phd War Studies. http://nonproarchive.com
Pinned
Here for nukes, osint, export controls, sanctions, and international security. Looking forward discussion and network building!
Reposted by Dr Ian J Stewart
🚨 JUST IN: Israel has long employed a strategy for dealing with nearby hostile groups, sometimes called "mowing the grass." That's not a strategy that will contain Iran's nuclear program, @nicholasgrossman.bsky.social tells Bulletin editor @mattyfield.bsky.social.
thebulletin.org/2025/06/why-...
thebulletin.org/2025/06/why-...
Why 'mowing the grass' won't work to curtail the Iranian nuclear program
Israel has long employed a strategy for dealing with nearby hostile groups like Hamas, one sometimes called "mowing the grass." That's not a strategy that will contain Iran's nuclear program, a politi...
thebulletin.org
June 27, 2025 at 8:42 AM
🚨 JUST IN: Israel has long employed a strategy for dealing with nearby hostile groups, sometimes called "mowing the grass." That's not a strategy that will contain Iran's nuclear program, @nicholasgrossman.bsky.social tells Bulletin editor @mattyfield.bsky.social.
thebulletin.org/2025/06/why-...
thebulletin.org/2025/06/why-...
A privilege to speak with the bulletin about Iran, the missing HEU and next step in international diplomacy. thebulletin.org/2025/06/the-...
The 15-minute interview: Ian Stewart on the present and future status of the Iran nuclear program
In this interview, Ian Stewart, executive director of the James Martin Center for Nonproliferation Studies in Washington, DC, says that, in the aftermath of the bombing of Iranian nuclear facilities, ...
thebulletin.org
June 27, 2025 at 4:13 PM
A privilege to speak with the bulletin about Iran, the missing HEU and next step in international diplomacy. thebulletin.org/2025/06/the-...
And indeed Grossi calls for this in the UNSC meeting
It's time for the IAEA to get access to the facilities. US and Israel should agree with Grossi to conduct no further attacks on nuclear facilities. Maybe this will be discussed at the upcoming Security Council meeting.
June 22, 2025 at 7:19 PM
And indeed Grossi calls for this in the UNSC meeting
It's time for the IAEA to get access to the facilities. US and Israel should agree with Grossi to conduct no further attacks on nuclear facilities. Maybe this will be discussed at the upcoming Security Council meeting.
June 22, 2025 at 6:07 PM
It's time for the IAEA to get access to the facilities. US and Israel should agree with Grossi to conduct no further attacks on nuclear facilities. Maybe this will be discussed at the upcoming Security Council meeting.
Reposted by Dr Ian J Stewart
I just wrote a quick piece that i'd encourage you to read and share: Eyes on the Clock - What Comes Next for Iran’s Nuclear Program
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
Eyes on the Clock: What Comes Next for Iran’s Nuclear Program
Dr Ian Stewart, 22 June 2025The attacks by Israel and the US on Iran's nuclear program have disabled and perhaps destroyed key facilities. While the next few days are likely to be consumed with analys...
www.nonproarchive.com
June 22, 2025 at 4:37 PM
I just wrote a quick piece that i'd encourage you to read and share: Eyes on the Clock - What Comes Next for Iran’s Nuclear Program
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
I just wrote a quick piece that i'd encourage you to read and share: Eyes on the Clock - What Comes Next for Iran’s Nuclear Program
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
Eyes on the Clock: What Comes Next for Iran’s Nuclear Program
Dr Ian Stewart, 22 June 2025The attacks by Israel and the US on Iran's nuclear program have disabled and perhaps destroyed key facilities. While the next few days are likely to be consumed with analys...
www.nonproarchive.com
June 22, 2025 at 4:37 PM
I just wrote a quick piece that i'd encourage you to read and share: Eyes on the Clock - What Comes Next for Iran’s Nuclear Program
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
I focus on the HEU, the potential for Iran to withdraw from the NPT & prospects for UN snapback. We have till October.
www.nonproarchive.com/article/2025...
Images of fordow suggest hit with possibility of significant damage. To be clear, though, Iran had enough 60% HEU to produce 90% for 10 nuclear weapons in days at fordow. That enrichment could continue at small site in weeks. HEU must be dealt with.
June 22, 2025 at 2:30 PM
Images of fordow suggest hit with possibility of significant damage. To be clear, though, Iran had enough 60% HEU to produce 90% for 10 nuclear weapons in days at fordow. That enrichment could continue at small site in weeks. HEU must be dealt with.
My last job in UK government was watching Iran building these damned facilities, including fordow and trying to stop them getting equipment and material from around the world. End of a chapter. But it's not over. Need to deal with HEU. Then what comes next.
June 22, 2025 at 1:58 AM
My last job in UK government was watching Iran building these damned facilities, including fordow and trying to stop them getting equipment and material from around the world. End of a chapter. But it's not over. Need to deal with HEU. Then what comes next.
See the bulletin on this, but let me say it more concisely. radiation release is not an issue for Natanz or Fordow. They are not nuclear reactors.
🚨 What are the radiological risks of striking Fordow, Natanz, Isfahan—and other Iranian nuclear facilities.
I assessed the risks yesterday for @thebulletin.org
thebulletin.org/2025/06/the-...
#Fordow #Natanz #Isfahan #Esfahan #Iran #nuclearweapons #JCPOA #NPT
I assessed the risks yesterday for @thebulletin.org
thebulletin.org/2025/06/the-...
#Fordow #Natanz #Isfahan #Esfahan #Iran #nuclearweapons #JCPOA #NPT
The radiation risks of Iran’s nuclear program, with or without a strike on Fordow
Israel’s attacks create significant risks at Iran's nuclear sites. What could go wrong?
thebulletin.org
June 22, 2025 at 1:05 AM
See the bulletin on this, but let me say it more concisely. radiation release is not an issue for Natanz or Fordow. They are not nuclear reactors.
I just did a quick update to the Live Situation Briefing: The Iran Nuclear Program page here nonproarchive.com/article/2025....
New headline assessment. We must track, verify and dispose of the 400+ kgs of 60% HEU.
New headline assessment. We must track, verify and dispose of the 400+ kgs of 60% HEU.
June 22, 2025 at 12:46 AM
I just did a quick update to the Live Situation Briefing: The Iran Nuclear Program page here nonproarchive.com/article/2025....
New headline assessment. We must track, verify and dispose of the 400+ kgs of 60% HEU.
New headline assessment. We must track, verify and dispose of the 400+ kgs of 60% HEU.
The US has struck Fordow, Natanz and Esfahan. Eyes on the prize, folks, there are 400kgs of 60% HEU out of international verification. It must be accounted for and disposed of. www.nonproarchive.com/article/2025...
Eyes on the Prize: Iran’s Highly Enriched Uranium Is Out of Control
Dr Ian J Stewart, 14 June 2025
www.nonproarchive.com
June 22, 2025 at 12:27 AM
The US has struck Fordow, Natanz and Esfahan. Eyes on the prize, folks, there are 400kgs of 60% HEU out of international verification. It must be accounted for and disposed of. www.nonproarchive.com/article/2025...
I am now maintaining an article containing a live situation briefing on the status of Iran's nuclear program in the context of Israel's strikes. I'll update this to include more depth and new information as things transpire. I will also post updates on X & here www.nonproarchive.com/article/2025...
Live Situation Briefing: The Iran Nuclear Program
Dr Ian J Stewart, 21 June 2025
www.nonproarchive.com
June 21, 2025 at 10:35 PM
I am now maintaining an article containing a live situation briefing on the status of Iran's nuclear program in the context of Israel's strikes. I'll update this to include more depth and new information as things transpire. I will also post updates on X & here www.nonproarchive.com/article/2025...
The HEU issue must be addressed. Iran says it won't give up enrichment or negotiate in conflict. Possibility is interim 1 month agrmnt in which US does not strike while Iran provides IAEA access to nuclear sites and materials, HEU moved out of Fordow & no enrichment beyond 5%.
June 21, 2025 at 5:33 PM
The HEU issue must be addressed. Iran says it won't give up enrichment or negotiate in conflict. Possibility is interim 1 month agrmnt in which US does not strike while Iran provides IAEA access to nuclear sites and materials, HEU moved out of Fordow & no enrichment beyond 5%.
Reposted by Dr Ian J Stewart
🚨 JUST IN: I break down the risks of striking Iran’s nuclear sites. What could go wrong?
In @thebulletin.org
thebulletin.org/2025/06/the-...
#Iran #Natanz #Fordow #Israel #proliferation #nuclearweapons #nukesky
In @thebulletin.org
thebulletin.org/2025/06/the-...
#Iran #Natanz #Fordow #Israel #proliferation #nuclearweapons #nukesky
The radiation risks of Iran’s nuclear program, with or without a strike on Fordow
Israel’s attacks create significant risks at Iran's nuclear sites. What could go wrong?
thebulletin.org
June 21, 2025 at 2:27 AM
🚨 JUST IN: I break down the risks of striking Iran’s nuclear sites. What could go wrong?
In @thebulletin.org
thebulletin.org/2025/06/the-...
#Iran #Natanz #Fordow #Israel #proliferation #nuclearweapons #nukesky
In @thebulletin.org
thebulletin.org/2025/06/the-...
#Iran #Natanz #Fordow #Israel #proliferation #nuclearweapons #nukesky
There are 10 nuclear weapons worth of material (60% HEU) out of control and the IAEA doesn't know where it is. It should be the major concern and crisis as I say here. www.nonproarchive.com/article/2025...
Eyes on the Prize: Iran’s Highly Enriched Uranium Is Out of Control
Dr Ian J Stewart, 14 June 2025
www.nonproarchive.com
June 19, 2025 at 9:37 PM
There are 10 nuclear weapons worth of material (60% HEU) out of control and the IAEA doesn't know where it is. It should be the major concern and crisis as I say here. www.nonproarchive.com/article/2025...
Reposted by Dr Ian J Stewart
🚨 JUST IN: UK considers reintroducing air-launched tactical nuclear weapons
But an air-launched tactical nuclear weapon capability would not address short-term security concerns of the UK and Europe, @ian-j-stewart.bsky.social writes.
In @thebulletin.org
thebulletin.org/2025/06/uk-c...
#nukesky
But an air-launched tactical nuclear weapon capability would not address short-term security concerns of the UK and Europe, @ian-j-stewart.bsky.social writes.
In @thebulletin.org
thebulletin.org/2025/06/uk-c...
#nukesky
UK considers reintroducing air-launched tactical nuclear weapons
An air-launched tactical nuclear weapon capability would not address short-term security concerns of the United Kingdom and Europe.
thebulletin.org
June 16, 2025 at 9:16 AM
🚨 JUST IN: UK considers reintroducing air-launched tactical nuclear weapons
But an air-launched tactical nuclear weapon capability would not address short-term security concerns of the UK and Europe, @ian-j-stewart.bsky.social writes.
In @thebulletin.org
thebulletin.org/2025/06/uk-c...
#nukesky
But an air-launched tactical nuclear weapon capability would not address short-term security concerns of the UK and Europe, @ian-j-stewart.bsky.social writes.
In @thebulletin.org
thebulletin.org/2025/06/uk-c...
#nukesky
Anyone able to recommend a cursor like tool for word documents?
November 27, 2024 at 11:20 PM
Anyone able to recommend a cursor like tool for word documents?
What is General Kellogg's view of how to end the conflict in Ukraine? Here's Grok's summary
November 27, 2024 at 6:06 PM
What is General Kellogg's view of how to end the conflict in Ukraine? Here's Grok's summary
Reposted by Dr Ian J Stewart
ATC recordings: youtu.be/uaDYV9IxJLo?...
SwiftAir DHL Boeing B737-400 Crash near Vilnius Airport
YouTube video by VASAviation -
youtu.be
November 26, 2024 at 12:21 AM
ATC recordings: youtu.be/uaDYV9IxJLo?...
Given the reports a couple of weeks ago about Russia smuggling explosives on cargo aircraft to disrupt shipments, there's going to be a lot of suspicion about this. Wait for the investigation.
www.reuters.com/business/aer...
www.nbcnews.com/news/world/r...
www.reuters.com/business/aer...
www.nbcnews.com/news/world/r...
DHL cargo plane crashes near Vilnius airport
A DHL cargo plane crashed near Vilnius airport on Monday, at about 0330 GMT, Vilnius airport and Lithuanian police spokespersons told Reuters.
www.reuters.com
November 25, 2024 at 5:28 AM
Given the reports a couple of weeks ago about Russia smuggling explosives on cargo aircraft to disrupt shipments, there's going to be a lot of suspicion about this. Wait for the investigation.
www.reuters.com/business/aer...
www.nbcnews.com/news/world/r...
www.reuters.com/business/aer...
www.nbcnews.com/news/world/r...
We had the wonderful experience of welcoming our second kid to our family recently. We also had the very American experience of getting an $82k hospital bill. UK healthcare is very different! (We are fortunate to have insurance)
November 25, 2024 at 1:30 AM
We had the wonderful experience of welcoming our second kid to our family recently. We also had the very American experience of getting an $82k hospital bill. UK healthcare is very different! (We are fortunate to have insurance)
Interesting tweet here from Urenco. new US administration needs to focus on nuclear supply chains in a similar way Biden admin with chips. There's currently major question around mined uranium, enrichment and fuel manufacture capabilities at a time when nuclear is coming back in vogue. #nukesky
November 24, 2024 at 6:57 PM
Interesting tweet here from Urenco. new US administration needs to focus on nuclear supply chains in a similar way Biden admin with chips. There's currently major question around mined uranium, enrichment and fuel manufacture capabilities at a time when nuclear is coming back in vogue. #nukesky
They are also advertising a 3* role to oversee this. Vital and important position.
Defence Secretary John Healey has announced the UK’s plan to explore options for re-establishing a nuclear fuel cycle dedicated to defence purposes.
ukdefencejournal.org.uk/britain-to-r...
ukdefencejournal.org.uk/britain-to-r...
Britain to revive nuclear fuel production for defence
Defence Secretary John Healey has announced the UK’s plan to explore options for re-establishing a nuclear fuel cycle dedicated to defence purposes.
ukdefencejournal.org.uk
November 22, 2024 at 10:03 PM
They are also advertising a 3* role to oversee this. Vital and important position.
Reposted by Dr Ian J Stewart
The new nuclear "Basic Principles" just dropped (h/t @dvsteff.bsky.social). The key change is that it's the aggression that "poses critical threat to the sovereignty and/or territorial integrity" instead of "puts the very existence of the state in jeopardy" publication.pravo.gov.ru/document/000...
November 19, 2024 at 8:48 AM
The new nuclear "Basic Principles" just dropped (h/t @dvsteff.bsky.social). The key change is that it's the aggression that "poses critical threat to the sovereignty and/or territorial integrity" instead of "puts the very existence of the state in jeopardy" publication.pravo.gov.ru/document/000...
If you are a researcher in DC working on semiconductor supply chain / chips issues, i'd like to connect!
November 18, 2024 at 6:12 PM
If you are a researcher in DC working on semiconductor supply chain / chips issues, i'd like to connect!