leoncastjan.bsky.social - Profile | ThreadSky | a Reddit-style client for Bluesky

New publication! My colleague Antonio Guzmán Mutis and I have an article in The George Washington International Law Review highlighting the accountability deficit for wrongful European arms exports from a human rights perspective. 🔗 Open access: www.thegwilr.org/volume-56-is...

submitted 2 days ago • 0 comments

William Hartung and Ashley Gate @quincyinst.bsky.social argue "The real issue is how to stop dangerous, counterproductive arms transfers, not how to make it easier to cash in on sales that too often undermine U.S. interests." responsiblestatecraft.org/foreign-corr...

submitted 6 days ago • 0 comments

Mexico might expand its US lawsuit vs arms manufacturers to include providing material support to Designated Foreign Terrorist Organizations. The game-changer here is that US antiterrorism laws apply regardless of intent @thomas-graham.bsky.social @theguardian.com www.theguardian.com/world/2025/f...

submitted 8 days ago • 0 comments

#CDMX! Still time to join this panel next Tuesday on trafficking and diversion of firearms in Latin America with Prof. @sergioaguayo.bsky.social, Pablo Arrocha (SRE, México), Ivan Contente Marques (OAS), and Cecilia Farfán-Méndez. Register: docs.google.com/forms/d/e/1F...

submitted 9 days ago • 0 comments

Check out my new page featuring the International Law Clinic that I supervise at @uvalawschool.bsky.social! www.leoncastellanos.com/law-clinic

submitted 10 days ago • 0 comments

Great to be back at @uvalawschool.bsky.social to work with talented students at the International Law Clinic. Our client this year is the UN Global Firearms Programme. Watch this space!

submitted 12 days ago • 0 comments

Against militarist environmental damage - brilliant oped by my great colleague www.nytimes.com/2025/02/18/o...

submitted 12 days ago • 0 comments

The real question is will Europe rise to the challenge to counter the Russian threat or to protect Ukraine? www.bbc.com/news/article...

submitted 15 days ago • 0 comments

The plot thickens www.theguardian.com/world/2025/f...

submitted 15 days ago • 0 comments

Happy Valentine's from your resident international law cumbia crusader www.youtube.com/watch?v=MRrs...

submitted 16 days ago • 0 comments

Modernism is from the NINETEENTH CENTURY??

submitted 16 days ago • 0 comments

Armed violence is spiking in the Netherlands and across major European cities: "The number of minors carrying firearms in the Netherlands has surged by 40 percent over the past four years": nltimes.nl/2025/02/13/g...

submitted 17 days ago • 0 comments

Thank you, the whole book is now available in open access here academic.oup.com/book/57867

submitted 17 days ago • 1 comment

Join us in Mexico City! International Forum on trafficking and Diversion of Firearms in Latin America: Responses, and Responsibility. With @sergioaguayo.bsky.social, Pablo Arrocha, Ivan Marques and Cecilia Farfán. 📍In-person, 25 Feb, 9:30 @CIDE MX Registration: docs.google.com/forms/d/e/1F...

submitted 17 days ago • 0 comments

Mexico's Prosecutor General opens investigation into arms trafficking from U.S., citing that 74% of weapons used by criminal organizations are crossing the border illegally: contralinea.com.mx/interno/sema...

submitted 19 days ago • 0 comments

oh yeah www.youtube.com/watch?v=gQtK...

submitted 20 days ago • 1 comment

Front-page story on how US guns get smuggled to Mexico, with helpful graphics @elpaismexico.bsky.social elpais.com/mexico/2025-...

submitted 21 days ago • 0 comments

The government is looking to ban AR-15-style rifles commonly used in U.S. mass shootings "to clamp down on some semi-automatic weapons." www.reuters.com/world/europe...

submitted 21 days ago • 0 comments

What is business and human rights litigation? @billdodge.bsky.social shares some thoughts in this recap of our Oxford roundtable convened last month by Hassan Ahmad, Ekaterina Aristova and Rachel Chambers: tlblog.org/business-and...

submitted 22 days ago • 0 comments

Nos vemos en México para hablar de tráfico de armas con @sergioaguayo.bsky.social, Pablo Arrocha, Ivan Marques y Cecilia Farfán. Con palabras de nuestro anfitrión @perezricart.bsky.social y @romainlecour.bsky.social. 🗓️ 25 de febrero | 09:30 📍 CIDE, CDMX 👉 Registro: docs.google.com/forms/d/e/1F...

submitted 23 days ago • 0 comments

The Netherlands and Israel are concluding a Status of Forces Agreement, a treaty that defines the legal status of military and civilian personnel abroad. This week, the Dutch government answered parliamentary questions on the issue (in Dutch): www.rijksoverheid.nl/documenten/k...

submitted 23 days ago • 0 comments

NEW ODD LOTS: We talked to Shyam Sankar, the CTO of Palantir, about his vision for reforming how the US spends money on weapons and defense podcasts.apple.com/us/podcast/t...

submitted 24 days ago • 21 comments

Me when I buy an OUP/CUP hardcover

submitted 25 days ago • 0 comments

This raises serious concerns and potentially puts Google on a collision course with international law and human rights standards: edition.cnn.com/2025/02/04/b...

submitted 26 days ago • 0 comments

A tragic reminder that Europe has a gun problem. For data & expert analysis, see Project Target: vlaamsvredesinstituut.eu/en/target/

submitted 26 days ago • 0 comments

happy to see this clause in a contract I just signed, let's make this boilerplate plz

submitted 27 days ago • 13 comments

Trump pauses Mexico tariffs for 1 month, commits to working towards stopping the illegal flow of U.S. firearms into Mexico. In exchange, President Sheinbaum will send 10,000 members of Mexico's National Guard to the northern border. edition.cnn.com/2025/02/03/w...

submitted 27 days ago • 0 comments

Great discussion here with Jack Goldsmith on the unitary executive theory in the context of Trump's suspension of federal aid & other government expenditures: open.spotify.com/episode/2Iej...

submitted 28 days ago • 0 comments

New data shows the U.S. zip code provenance of crime guns in Mexico, Guatemala, Haiti. Gun trafficking from the U.S. is continuing, with Arizona emerging as a preferred source. The report also compares gun exports during the Obama, Trump and Biden administrations. Read more 👇

submitted 30 days ago • 0 comments

Simpler isn’t always better. A new paper in PNAS explores how advances in machine learning and beyond challenge science’s obsession with Ockham’s razor https://santafe.edu/news-center/news/sharp-look-into-ockhams-razor

submitted 32 days ago • 0 comments

"Šakalienė said her country isn't planning to slash the welfare state to boost the military budget. That's in contrast to recent comments from NATO Secretary-General Mark Rutte, who suggested that social spending should be reduced to free up cash for defense." www.politico.eu/article/lith...

submitted 33 days ago • 1 comment

NATO chief Mark Rutte calls for a "shift to a wartime mindset" www.bloomberg.com/news/article...

submitted 35 days ago • 0 comments

go.bsky.app/U4jPcYY

submitted 37 days ago • 1 comment

Couldn't agree more with Daniel here: "The challenges ahead for a new generation of legal scholars and historians affords us no time to cling to the bitterness of those who preceded us".

submitted 38 days ago • 0 comments

20 Jan: Mexico presents a position paper at the UN categorically rejecting the invocation of the "unwilling or unable" doctrine as a legal justification for the extraterritorial use of force in self-defense against non-state actors. Also on 20 Jan: www.whitehouse.gov/presidential...

submitted 40 days ago • 0 comments

Companies in Russia's neighbouring countries are intermediaries in the evasion of military sanctions: Armenia, Kazakhstan and Kyrgyzstan, as well as Georgia and Uzbekistan. Since the outbreak of war, these countries have seen an abnormal increase in arms imports www.journalismfund.eu/arms-route-t...

submitted 40 days ago • 1 comment

"Urgent steps need to be taken to stop incentivizing quantity in science if one is to stem the scientific pollution." zenodo.org/records/1463...

submitted 43 days ago • 0 comments

My favourite David Lynch work is his comic, "The Angriest Dog in the World". It used the same pictures but with different words, which might sound familiar to you! I'd never heard of it when I started Dinosaur Comics, but when I discovered it about it a year in, I made sure T-Rex got a dog <3

submitted 45 days ago • 6 comments

Mexico a violent country? 'We are being flooded with weapons from the US' — @nrc.nl reports from Culiacán with quotes by @ievajusionyte.bsky.social: www.nrc.nl/nieuws/2025/...

submitted 43 days ago • 0 comments

Mexico has filed its SCOTUS brief in its case against gun manufacturers. Argument is scheduled for March 4th, 2025. The full docket coverage is available via @scotus-blog.bsky.social : www.scotusblog.com/case-files/c...

submitted 44 days ago • 0 comments

“The amount Biden just bragged about giving to the weapons industry is about $540 billion more than the combined value of all the projects announced under the Bipartisan Infrastructure Law, the Inflation Reduction Act, and the CHIPS Act.” responsiblestatecraft.org/biden-foreig...

submitted 44 days ago • 2 comments

"Civil society has watched in puzzled wonderment as Europe sleepwalks into a mercenary #spyware crisis. Europe is an epicenter of spyware abuses and increasingly playing host to spyware companies." @jsrailton.bsky.social @citizenlab.ca therecord.media/commercial-s...

submitted 44 days ago • 0 comments

"I think the Mexican conflict is a weird mix of crime and war and we don’t have the best language and legal norms to deal with that." @ioangrillo.bsky.social via @unherd.com: unherd.com/2025/01/trum...

submitted 46 days ago • 0 comments

⚖️Courts are applying new due diligence standards yet interpreting them differently. To provide clarity, @leoncastjan.bsky.social has recently curated an @ajil.bsky.social symposium with @tibisay-morgandi.bsky.social and @lawprofpuig.bsky.social to examine these measures. Read more

submitted 46 days ago • 0 comments

Catch the video of #LookingAhead2025 event: "Evolving Legal Challenges to the Arms Trade in 2025" with Shahd Hammouri, Marina Aksenova, and James Yap and moderated by @leoncastjan.bsky.social (details at www.forumarmstrade.org/lookingahead...) Video: youtu.be/aZXRUc6kZ4E?...

submitted 47 days ago • 0 comments

Join us tomorrow @forumarmstrade.bsky.social ! Register here: us02web.zoom.us/webinar/regi...

submitted 48 days ago • 0 comments

Dark dark academia www.researchprofessionalnews.com/rr-news-uk-r...

submitted 49 days ago • 0 comments

Hey international law, this could be us www.nytimes.com/2025/01/09/a...

submitted 51 days ago • 0 comments

Register for #LookingAhead2025 event "U.S. Border: Understanding the Guns and Immigration Link in 2025" Jan 16 at 2PM EST with * John Lindsay-Poland, Stop US Arms to Mexico * Jonathan Lowy, Global Action on Gun Violence * Laura Vargas, University of Colorado www.forumarmstrade.org/lookingahead...

submitted 51 days ago • 0 comments