Joshua Geltzer

ASU Future of War Fellow

Joshua Geltzer, ASU Future of War Fellow, is writing a book exploring challenges associated with modern communications technologies such as social media platforms, file-upload sites, and internet search engines.  He is the executive director and visiting professor of law at Georgetown University Law Center's Institute for Constitutional Advocacy and Protection.  

From 2015 to 2017, he served as senior director for counterterrorism at the National Security Council staff, having served previously as deputy legal advisor to the National Security Council and as counsel to the assistant attorney general for national security at the Department of Justice.  He also served as a law clerk to Justice Stephen Breyer of the U.S. Supreme Court and, before that, as a law clerk to Chief Judge Alex Kozinski of the Ninth Circuit Court of Appeals.  

Josh received his J.D. from Yale Law School, where he served as editor-in-chief of the Yale Law Journal, and his PhD in War Studies from King’s College London, where he was a Marshall Scholar.  Before that, he attended Princeton University, majoring in the Woodrow Wilson School of Public and International Affairs.  He is the author of US Counter-Terrorism Strategy and al-Qaeda: Signalling and the Terrorist World-View, published by Routledge; and his work has appeared in The Atlantic, Foreign Policy, ParametersStudies in Conflict & Terrorism, the Journal of Constitutional Law, and the Berkeley Journal of International Law.

All Work

FELLOWS
Trump’s Voter Fraud Commission Plans to Create a Massive Voter Database. Former National Security Officials Say It Could Be Hacked.

Joshua Geltzer was quoted in the Washington Post on the cybersecurity risks associated with the Pence-Kobach Commission on voter fraud.


FELLOWS and INTERNATIONAL SECURITY
Is It Legal for Trump to Block You on Twitter? Maybe Not

Joshua Geltzer was quoted in Salon on President Trump's use of Twitter and its intersection with the First Amendment.


FELLOWS
Trump's Dangerous Guantánamo Fixation Will Fuel Fire for Terrorists

Joshua Geltzer wrote for The Hill on why Trump's suggestion to send Sayfullo Saipov to GTMO is counterproductive and potentially harmful.


FELLOWS
Georgetown Law Joins Columbia in Trump Twitter Challenge

Joshua Geltzer was quoted by Multichannel News in relation to President Trump's use of Twitter and the First Amendment.


FELLOWS
First Amendment Advocates Charge Trump Can't Block Critics On Twitter

Joshua Geltzer was quoted by NPR in relation to the lawsuit filed against President Trump and how he uses his personal Twitter account.


FELLOWS
Why the First Amendment Constrains Trump’s Use of Twitter

Joshua Geltzer co-wrote for Just Security on why the First Amendment can constraint President Trump's use of Twitter.


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Trump Shreds Norms in Response to New York Attack

Joshua Geltzer was quoted in The Globe and Mail on President Trump's reaction to the terrorist attack in New York City on October 31.


FELLOWS and INTERNATIONAL SECURITY
For Quick and Strong Justice, Look to the Courts—Not Guantanamo

Joshua Geltzer wrote for Just Security on why transferring Sayfullo Saipov to Guantánamo is a bad idea.


FELLOWS and INTERNATIONAL SECURITY
Trump Suggests Guantánamo Prison for Truck Attack Suspect, an Unprecedented Step

Joshua Geltzer was quoted in the New York Times on the Trump administration's consideration of sending Sayfullo Saipov to Guantánamo.


FELLOWS and INTERNATIONAL SECURITY
Terror in NYC: The Real Test Comes Tomorrow, Not Today

Josh Geltzer wrote for Just Security on the importance of U.S. leaders' response in the aftermath of the terrorist attack in NYC on Oct. 31.


FELLOWS and INTERNATIONAL SECURITY
Silicon Valley Gets Behind Initiative to Challenge Trump’s Agenda in Court

Joshua Geltzer was quoted in BloombergTechnology.


FELLOWS and INTERNATIONAL SECURITY
Obama-Era Uranium Deal Yields New Questions, New Accusations and New Investigation