Sam Lair @slair.bsky.social Fellow at FPRI | MIIS NPTS '24 | RTs/views my own etc. Also @sam_lair on Twitter
Caroline Baxter @convergingriskslab.bsky.social Director, Converging Risks Lab, within the Council on Strategic Risks.
Former DASD(FE&T) and RAND policy wonk.
Come for the foresight, stay for the fun.
Yes, I took that photo. It was even cooler than you think.
https://councilonstrategicrisks.org/crl/
Niko Bowie @nikobowie.bsky.social Law professor at Harvard (https://hls.harvard.edu/faculty/nikolas-bowie/)
Author with Daphna Renan of Supremacy: How Rule by the Court Replaced Government by the People (W.W. Norton 2026) (readsupremacy.com)
Security Dilemmas @securitydilemmas.bsky.social I'm Richard Purcell, Louisiana native, proud UNC alum, former Capitol Hill staffer, SAIS grad, and (hopefully) keen observer of foreign policy and national security. Nukes are my specialty.
Matthew Bunn @matthew-bunn.bsky.social Father, husband, citizen, professor, focusing mainly on nuclear weapons and nuclear energy issues. Faculty lead for Harvard's Managing the Atom project: www.belfercenter.org/programs/managing-atom
My website: matthewbunn.scholars.harvard.edu
Tobias Harris @tobiasharris.bsky.social Japanese politics analyst; author of The Iconoclast: Shinzō Abe and the New Japan; Chicago-born Cubs fan now living in DC; marathoner.
Substack: Observingjapan.substack.com.
Business: www.japanforesight.com
@anna-garner.bsky.social @anna-garner.bsky.social 
Shane Harris @shaneharris.bsky.social Staff Writer @theatlantic. Author. Podcaster. Filmmaker. https://linktr.ee/shaneharris Signal: shaneharris.64
Sharon 🪳🌹 @sharonk.bsky.social political theologian at the ministry for the future (anglican - classical social democrat)
interests: classics, history, philosophy, conflict + IR, economics/economic history, foreign policy, climate change, E. Asia
Thomas Rid @ridt.bsky.social @ridt on X
William B. Fuckley @opinionhaver.bsky.social Endowed chair of the Tocqueville-Rand Freedom Enterprise Markets Innovation Center (disputed). Bound but not protected, I lie but I do not pretend. 🚰 🏗 only thing I'll tell you about my employer is that these aren't their views
Joshua Schwartz @joshschwartz.bsky.social Assistant Professor of Int'l Relations at Carnegie Mellon University | PhD at UPenn | Former Fellow at Harvard & MIT | I study things that go boom
joshuaaschwartz.com
Clay Copper @claycopper.bsky.social Fed defense university faculty, Security Cooperation pro, international relations, diplomacy, diverse democracy enjoyer, some boardgames and MtG, human
Kingston Reif @kingstonareif.bsky.social Senior International/Defense researcher at the RAND Corporation. Former DASD for Threat Reduction and Arms Control + Arms Control Association. Wisconsin sports fanatic. Personal account.
Jason Kikta @kikta.net // Making it up as I go
// JHU SAIS @alperovitch.institute adjunct
// @istorg.bsky.social adjunct sr tech advisor
// Former USCYBERCOM/CNMF
// Retired US Marine Corps
// Personal views and invective
Olúfẹ́mi O. Táíwò @olufemiotaiwo.bsky.social DC. political philosopher at Georgetown, editor at @hammerandhope.bsky.social, rhythm guitarist + vox for @femiandfoundation.bsky.social. #COYS
The Slides @theslides.bsky.social Bot posting 4x daily from Sam Biddle's curated collection of US military slides from the Cold War era.
Sam's intro essay: https://www.patreon.com/MaxRead/posts/true-life-for-i-155014876
Slides courtesy @sambiddle.com
Bot by @brian.gawalt.com
GOLIKEHELLMACHINE @golikehellmachine.com anarchist warlord arbitration consultant. drummer in tragic lovers. writes WORK IS FOUR LETTERS, poster emeritus for NORMAL MEN. don't be a dick.
https://golikehellmachine.com
https://tragiclovers.bandcamp.com
Lawyers, Guns and Money @lawgunsmoney.bsky.social The Last of the Old School Blogs
Larry the Cat @number10cat.bsky.social Chief Mouser to the Cabinet Office. 17 year old tabby. Living with my seventh Prime Minister. Unofficial.
https://www.buymeacoffee.com/Number10cat
Radley Balko @radleybalko.bsky.social Journalist. Quattrone Center journalism fellow.
Author: Rise of the Warrior Cop.
Co-author: The Cadaver King and the Country Dentist.
New podcast: Collateral Damage
Substack: radleybalko.substack.com
Signal: radleybalko.52
Joe Cirincione @joecirin.bsky.social I don’t post often, so I try to make every one count. I’ve worked for 45 years in government, think tanks, Georgetown U. and philanthropy. I write, lecture and do media interviews. On Substack at: joecirincione.substack.com
Ben Loehrke @nonstrategic.bsky.social Program Officer for Nuclear Weapons at Stanley Center for Peace and Security
Ex-Twitter @nonstrategic
https://stanleycenter.org
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
Sara Beth Marchert @sbmarchert.bsky.social Nuke nerd. Not my employer, likes/RTs ≠endorsements
Derek Johnson @derekjesq.bsky.social Chaos Muppet, Order Rising. CEO, ResearchCollaborative.org. Young(ish) Leader, Munich Security Conference + Friends of Europe. Former head of GlobalZero.org. Radicalized by basic decency. Made in #Iowa with parts from #Iran. he/him 🇦🇲
@douglasbshaw.bsky.social @douglasbshaw.bsky.social Imaginary provost of the make-believe university of human survival; promoting the creation and dissemination of knowledge to prevent nuclear war
Minna Ålander 🌻 @alanderminna.bsky.social Analyst @sceeus-ui.bsky.social at @uisweden.bsky.social | Associate Fellow @chathamhouse.org | @cepa.org Fellow | Council Member @ecfr.eu 📸 Stas Kartashov
🎙️ co-host Mildly Alarmed
✍️ Northern Flank Notes: https://open.substack.com/pub/minnalander
Spencer Ackerman @attackerman.bsky.social Journalist & author of REIGN OF TERROR, contributor to Zeteo. New comic book series: NO ONE ESCAPES THE DIALECTIC, from Boom! Studios. Subscribe to FOREVER WARS for ‘natsec’ journalism: https://www.forever-wars.com
Signal: attackerman.81
François Diaz-Maurin @francoisdm.bsky.social Nuclear editor @thebulletin.org. Fmr MacArthur Found. & Marie S.-Curie fellow @stanfordcisac.bsky.social. Fmr engineer in US/French nuclear ind. 1st gen. Father x3. Cello. Synthbass. Kyokushin. Autism. | Tips: francois@thebulletin.org Signal: francoisdm.21
Mariana Budjeryn @mbudjeryn.bsky.social Researcher of nuclear, Ukraine, and nuclear Ukraine. Author of Inheriting the Bomb. MIT Center for Nuclear Security Policy, Brookings and RUSI nonresident, NAS CISAC, ACONA.
Nina Tannenwald @ninatannenwald.bsky.social Political scientist at Brown, focusing on nuclear weapons, WMD, norms and institutions in security, human rights, ethics and laws of war.
Al Mauroni @progmil.bsky.social NatSec analyst, WMD and nukes, sci-fi enthusiast, gamer 
Togzhan Kassenova @togzhankassenova.bsky.social Almaty-born, DC-based expert on nuclear politics and financial crime prevention
Author of Atomic Steppe: How Kazakhstan Gave Up the Bomb (Stanford University Press, 2022)
http://www.togzhankassenova.com
Adam Mount @ajmount.com Deterrence, nuclear strategy, progressive foreign policy.
Fmr. FAS, CAP, CFR, Ph.D. Government, Georgetown.
Bio: ajmount.com
Banners: @uahirise.bsky.social
Andrey Baklitskiy @baklitskiy.bsky.social Nukes at UNIDIR. Views own, RT/❤️ ≠ endorsement
Marco Langbroek @marcolangbroek.bsky.social Lecturer in optical Space Situational Awareness at Delft Technical University, faculty of Aerospace. Spy sats, missiles, meteorites, asteroids. Asteroid (183294). Lapsed Archaeologist (PhD). Rowing. CFS. Opinions my own.
blog: http://sattrackcam.blogspot.c
Olya Oliker aka Dr. Olga Oliker (she/her) @olyaoliker.bsky.social Director, European Security @crisisgroup.org / Feminist / Migrant / ❤️ punk rock (but not only) / Opinions own / Endorsements clearly marked / podcast: https://www.crisisgroup.org/pod/europe/war-peace
Sergey Radchenko @radchenko.bsky.social Historian of the Cold War and after. Wilson E. Schmidt Distinguished Professor, Henry A. Kissinger Center for Global Affairs, Johns Hopkins School for Advanced International Studies. The author of “To Run the World.”
Bruno Tertrais @brunotertrais.bsky.social Deputy Director, Fondation pour la recherche stratégique.
Non-Resident Fellow, Institut Montaigne.
Geopolitics, strategy and stuff.
Personal account.
b.tertrais@frstrategie.org
Books: tinyurl.com/bdzbxnyx
Stephanie Carvin @stephaniecarvin.bsky.social Former national security analyst, Associate Professor, Senior Fellow Centre for Strategic Statecraft. Research on national and international security based in Ottawa, Canada 🇨🇦
Dmitri Alperovitch @dmitri.silverado.org Geopolitics, Russia, China, Cyber
Chairman @silverado.org
Author of WorldOnTheBrink.com
Host GeopoliticsDecanted.com podcast
Founder Alperovitch Institute for Cybersecurity Studies at Johns Hopkins SAIS
Co-Founder CrowdStrike
@DAlperovitch elsewhere
Institute for the Study of War @thestudyofwar.bsky.social ISW is a policy research organization focused on U.S. national security. Email: press@understandingwar.org. For more: https://linktr.ee/understandingwar
Gregory Kulacki @gkucs.bsky.social Director, East Asia, Global Security Program, Union of Concerned Scientists. Non-Resident Fellow, Research Center for the Abolition of Nuclear Weapons at Nagasaki University. Cross-cultural sojourner.
Catherine Dill @catherinedill.bsky.social Formerly known as atomic_pickles, but still thinking about atomic pickles. Fancies: gardens, birds, mountains & rocks, satellites, Delftware, N95s. She/her. Only personal views reflected.
Shea Cotton @sheacotton.bsky.social 
Dr. Taylor Loy @tayloraloy.bsky.social Virginia Tech Postdoc (STS), nuclear energy/nonpro. Former SRO instructor nuke worker. he/him.
https://tritiummatters.org
Diss:
https://hdl.handle.net/10919/120638
Day One:
https://fas.org/publication/fusion-energy-leadership-tritium-capacity/
Stephen Young @atomicwonk.bsky.social Advocate for more sensible nuclear weapons policies, firm believer that we should not live in a world where hundreds of millions could be dead in an hour. Associate Director for Government Affairs, Global Security Program, Union of Concerned Scientists
Tom Bielefeld @tombielefeld.bsky.social Researcher/Consultant/Trainer #NuclearSecurity & #Nuclear #Nonproliferation; @INS_Forum; @WINS_org; formerly Harvard's @BelferCenter; Chronotype/B, from #Bremen (Contact via https://sites.google.com/site/tombielefeld/)
Laura Grego @lauraegrego.bsky.social Senior scientist & research director, Global Security Program, ucsusa.org. Space, missile defense, nuclear weapons. 
Laicie Heeley @laicie.bsky.social Founder & CEO @inkstickmedia.com. Host of Things That Go Boom from PRX & Inkstick. Former wonk.
George William Herbert @georgewherbert.bsky.social IT/Cloud/SRE/PE, rockets & missiles, nukes not going bang, space, CS, ships. YIMBY & amateur transit geek. Part time adjunct @ miis.edu teaching Missiles & Missile Defense. I speak for myself only not $DAYJOB. V95.45XA I do #OSINT against nuclear missiles.
Jamie Withorne @jamiewithorne.bsky.social Nuclear weapons, international politics, and “”emerging”” technology.
Doctoral Research Fellow in Political Science, University of Oslo
LearnWMD Spreadsheet and Substack: www.jamiewithorne.com
Aaron Stein @aaronstein1.bsky.social President/CEO @fpri.bsky.social; Podcast w/ blogfather @armscontrolwonk.bsky.social; Recent Substacker; Author: US War Against ISIS. Views are all my own
Geoff Brumfiel @gbrumfiel.bsky.social I'm an editor/correspondent for NPR. Mostly smart on the radio. Mostly stupid on everywhere else.
ChatGPT describes me as: "Aerospace sleuth, nuclear nerd and NPR Superfan — with a side of surreal humor."
Signal: gbrumfiel.13
https://geoffbrumfiel.net/
Casillic @casillic.bsky.social Critical Infrastructure, High Consequence / High Integrity Systems, Space, Nuclear, Mathematics, Public Health, HPC
Steffan Watkins 🇨🇦 @steffanwatkins.bsky.social I'm a writer and research consultant specializing in tracking ships and planes using publicly available information.
https://www.patreon.com/SteffanWatkins
Hans Kristensen @nukestrat.bsky.social Director, Nuclear Information Project, Federation of American Scientists. Tracking nuclear arsenals, co-author of Nuclear Notebook, SIPRI Yearbook. Opinions my own.
Website: https://fas.org/initiative/nuclear-information-project/
Joseph Trevithick @franticgoat.bsky.social ‘Punk' Journalist, Executive Editor
at The War Zone (https://www.thedrive.com/the-war-zone), and defense and security analyst.
Joseph Dempsey @josephhdempsey.bsky.social Research Associate for Defence & Military Analysis,
The International Institute for Strategic Studies
Matt Korda @mattkorda.bsky.social I count nukes for the Federation of American Scientists + the Stockholm International Peace Research Institute. 🇨🇦 Views my own.
Scott LaFoy @wslafoy.bsky.social Open Source Analysis of ballistic missiles, nuclear weapons, BMD, DPRK, & PRC.
Vice President of Nuclear and Technology Security Programs, Exiger.
Making podcasts over at https://www.armscontrolwonk.com/
All opinions my own.
Robert Farley @drfarls.bsky.social Co-founder Lawyers, Guns and Money. Works at Patterson School of Diplomacy and International Commerce at the University of Kentucky
Pavel Podvig @russianforces.org Russian nuclear forces, nuclear arms control, disarmament, verification. Strictly personal views here.
All coordinates are at http://russianforces.org/podvig
Alex Wellerstein @wellerstein.bsky.social Nuclear historian. Prof@Stevens Institute of Technology. Visiting researcher@Nuclear Knowledges, Sciences Po, Paris. Senior Fellow@thebulletin.org. Author: THE MOST AWFUL RESPONSIBILITY (2025). Creator of NUKEMAP. Blogging @ https://doomsdaymachines.net.
Decker Eveleth @dexeve.bsky.social PRC and DPRK strategic forces analyst with CNA. BA Reed College, MA Middlebury Institute. NSF GRFP. 
Dan Nexon @dhnexon.net Professor in the Department of Government and the School of Foreign Service at Georgetown University.
Power Politics | Empires | International Order
dhnexon.net | https://www.lawyersgunsmoneyblog.com | duckofminerva.com
Jonathan McDowell @planet4589.bsky.social Astrophysicist
Support the work of Jonathan's Space Report:
https://www.gofundme.com/f/fund-jonathans-space-report-library-transition
G Elliott Morris @gelliottmorris.com i write the data-driven politics newsletter Strength In Numbers: gelliottmorris.com/welcome
pollster: https://wavepolling.com
book: wwnorton.com/books/Strength-in-Numbers
polls/forecasts: @fiftyplusone.news
formerly 538 & The Economist
Mehdi Hasan @mehdirhasan.bsky.social Editor and CEO, Zeteo
Author, ‘Win Every Argument’
British-American
Andrew Jones @andrewjonesspace.bsky.social Freelance journalist mainly tracking Chinese space activities. Correspondent at SpaceNews, also bylines at Spacedotcom, IEEE Spectrum and more.
Mike Poznansky @mpoznansky.bsky.social Associate Professor @ Naval War College | CFR Term Member | Author of "In the Shadow of International Law" (OUP 2020) | Views my own.
Bill Kristol @billkristolbulwark.bsky.social Editor at large, The Bulwark.
Director, Defending Democracy Together.
Host, Conversations with Bill Kristol.
Never Trump.
King Algamemnon @adamrothman.bsky.social Ex-Interim Chair. Free puns. Historian. Books: Slave Country, Beyond Freedom's Reach. More: https://gufaculty360.georgetown.edu/s/contact/00336000014RXHCAA4/adam-rothman
Zohran Kwame Mamdani @zohrankmamdani.bsky.social Mayor of New York City
Jeffrey Lewis @armscontrolwonk.bsky.social William J. Perry Lecturer at Stanford CISAC & Distinguished Research Fellow FPRI. Member of the Bulletin of Atomic Scientists Science and Security Board & National Academies Committee on Int’l Security and Arms Control.
Peter @notalawyer.bsky.social No longer in good standing with the New York State bar
My newsletter: StringinaMaze.net
Graham J. @grahamj.bsky.social Defense, space, intel | trains, cities, pugs, warhammer | learning 廣東話 | the good Graham/tall one
Old site: @grahamwjenkins, @lowheadways
about.me/grahamjenkins
LA via DC via Boston
Mount St. Helens Archive @mountsthelens1980.bsky.social Hi, I'm Chris K 👋
Former science communicator, now documenting Mount St. Helens: before 1980, the eruption and the years of activity that followed, and the land's recovery since.
Links/email: https://linktr.ee/mountsthelensarchive
Michael @fleerultra.bsky.social History's most successful legal podcaster, co-host of 5-4 pod. He/Him @fivefourpod.bsky.social
hannah gais @hannahgais.bsky.social Senior researcher & journalist. @splcunion.bsky.social. Former internet person at @thebaffler.com. hannahgais@proton.me Signal: 334-315-8634 http://seedisclaimer.com. Newsletter: https://postsfromunderground.ghost.io/
Weird Spy Satellite @weirdsatellite.bsky.social Weird Spy Satellite Imagery. A speculative surveillance bot by @samplereality.bsky.social. Posts self-destruct for security reasons.
southpaw @nycsouthpaw.bsky.social Writer, lawyer, Dodger fan, internet dog. nycsouthpaw18 at gmail. 
James Acton @nuclear-jim.bsky.social Co-director of the Nuclear Policy Program at the Carnegie Endowment For International Peace. I spend a lot of time thinking about nuclear weapons, advanced nonnuclear technology, and escalation.
Benjamin Wittes @benjaminwittes.lawfaremedia.org Editor in Chief, @lawfaremedia.org
Senior Fellow, Brookings
Author, #DogShirtDaily
Host, #DogShirtTV
Purveyor of mischief.
Harasser of Russian diplomats worldwide.
The Bulwark @thebulwark.com Political analysis and reporting free of tribal prejudices. Sign up for our newsletters here: https://thebulwark.com/subscribe
Kevin @reginageorgebush.bsky.social Jersey til I die. Writer, political consultant, and lawyer for hire. End corruption. Tax the rich. Rahway. primaryschool.ghost.io / buymeacoffee.com/primaryschool
Patrick Wyman @patrickwyman.bsky.social Historian. Pods: Past Lives. Tides of History. Books: "The Verge." "Lost Worlds." pwymanusc at gmail. Enthusiast. https://linktr.ee/patrickwyman
Walter Olson @walterolson.bsky.social Writer on law etc.; Cato Institute. Election law, Maryland civic stuff, cooking. Blogged at Overlawyered back when. No kings, no tyrants.
Michael Hobbes @michaelhobbes.bsky.social Solitary, poor, nasty, brutish and short.
Scott Shapiro @scottjshapiro.bsky.social Southmayd Prof @YaleLawSch + Philosophy @Yale. Ed, @LegalTheory + Stanford Encyclopedia of Phil. “Legality”, “The Internationalists” (with @oonahathaway), “Fancy Bear Goes Phishing.” Overuses “neurosymbolic”
Kevin Elliott @kjephd.bsky.social Political theorist studying democracy, ethics, & institutions. Author of Democracy for Busy People (https://press.uchicago.edu/ucp/books/book/chicago/D/bo194847654.html); more at kevinjelliott.net. Generally poasting my way through this thing
Sebastian Bae @sebastianbae.bsky.social Senior Game Designer at the Center for Naval Analyses (CNA). Designer of the "Littoral Commander" wargame series. Former US Marine. Opinions own.
Brady Africk @bradyafr.bsky.social Data, maps, and satellite imagery 🛰🌻🔭
viewsfromabove.bradyafrick.com
brasidas @brasidas.bsky.social Not Laconic
Zach Ota @zachota.bsky.social Personal Perspectives • Beholding the Pacific • Krulak Center • YCAPS • Allies & Partners • Amphibious Defense • Aloha
Paul M Kearney @strategerist.bsky.social US Army Goodpaster Scholar, Wargamer, & Paratrooper | USMA ‘09, KCL War Studies ‘15, G’town SSP ‘20 | PhD Candidate @ Duke PoliSci | Personal Acct per DoDI 5400.17
Blake Herzinger @bdherzinger.bsky.social I like big navies and I cannot lie. Navy Reservist | CIMSEC | Asian Security | ex-Citi, AEI, USSC, Twitter, Pacific Forum, US Pacific Fleet | Proud Idahoan | Opinions mine, but you're welcome to adopt them
Kori Schake @kschake.bsky.social Leads AEI’s foreign and defense team, author of The State and the Soldier, contributing writer at The Atlantic. 2025-2026 Kissinger Chair at the Library of Congress. Californian. https://www.aei.org/profile/kori-schake/