Terrorism & Violent Extremism

Just Security provides expert legal and policy analysis of terrorism, counterterrorism, and domestic and international violent extremism.

Highlights:

An injured boy lays on his back in a van as two others attend to his wounds.

The Political Theater Behind Trump’s “Guns-a-Blazing” Nigeria Threat

Trump’s threat of military intervention in Nigeria may be intended more for domestic audiences and wouldn't address the drivers of the country's conflict.
Two Afghan women wearing, from left to right, a light blue and a darker blue burqa sit on the ground with baskets in front of them and what appears to be a more formal market stall behind them, in Mazar-i-Sharif on October 2, 2025. At the left of the photo next to the women is a wheelbarrow turned against a wall. (Photo by ATIF ARYAN/AFP via Getty Images)

Walls of Silence, Crumbling Futures: Why the World Must Act on Afghanistan

The credibility of the U.N.'s human rights framework depends on whether it can confront a systematic experiment in gender oppression with more than statements of alarm.

Collection: U.S. Lethal Strikes on Suspected Drug Traffickers

Collection of expert analysis on the legality of the U.S. strike on Venezuelan vessels in the Caribbean, the consequences of the strike, and related issues.
In this photo illustration the logo of US online social media and social networking site 'X' (formerly known as Twitter) is displayed centrally on a smartphone screen alongside that of Threads (L) and Instagram (R) on August 01, 2023 in Bath, England. On the top row the logo of online video sharing and social media platform YouTube is seen alongside that of Whatsapp and TikTok. Along the bottom row Facebook, Quora amd Messenger are displayed.

The Feedback Loop Between Online Extremism and Acts of Violence

Each new incident of political violence is followed by a wave of digital celebration, intimidation, and imitation. Responses remain polarized and superficial.
IMAGES (left to right): Natural disaster and its consequences (via Getty Images); In this picture taken on September 28, 2022, an internally displaced flood-affected family sits outside their tent at a makeshift tent camp in Jamshoro district of Sindh province (Photo by Rizwan Tabassum/AFP via Getty Images; Trees smolder and burn during the Dixie fire near Greenville, California on August 3, 2021. – Numerous fires are raging through the state’s northern forests, as climate change makes wildfire season longer, hotter and more devastating. (Photo by JOSH EDELSON/AFP via Getty Images)

Just Security’s Climate Archive

A catalog of articles analyzing the diplomatic, political, legal, security, and humanitarian consequences of the international climate crisis.
U.S. President Donald Trump (C) speaks as (L-R) White House Deputy Chief of Staff Stephen Miller, White House Chief of Staff Susie Wiles, U.S. Attorney General Pam Bondi, U.S. Secretary of Homeland Security Kristi Noem and Federal Bureau of Investigation Director Kash Patel listen during a roundtable discussion in the State Dining Room of the White House on October 08, 2025 in Washington, DC. Trump’s administration held the roundtable to discuss the anti-fascist Antifa movement after signing an executive order designating it as a “domestic terrorist organization”. (Photo by Anna Moneymaker/Getty Images)

How Designating Antifa as a Foreign Terrorist Organization Could Threaten Civil Liberties

If the Trump administration designates Antifa as an FTO, it could have implications extending beyond anti-fascist activists to the entire architecture of U.S. civil society.
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2,225 Articles
A police officer responds to a shooting at Evergreen High School on September 10, 2025 in Evergreen, Colorado. At least three students, including the suspected shooter, were injured in the attack. (Photo by Michael Ciaglo/Getty Images)

Correctly Assessing Left-Wing Terrorism and Political Violence in the United States

A recent published report risks feeding false narratives about political violence and polarization.
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The Just Security Podcast: Murder on the High Seas Part III

Tess Bridgeman is joined by Rebecca Ingber and Brian Finucane to assess the latest strikes, the brief detention of two survivors, where the campaign may be headed, and what…
Right-wing white nationalists hold flags with signs like "white pride worldwide."

A New Approach in the Fight Against Transnational Violent Extremism is Needed

If the U.S. and foreign partners could strategically deploy their counterterrorism programs to deliberately target a common enemy, all would mutually benefit.
Police maintain a presence outside a command center holding evacuated students following the lockdown of the school after a call of an active shooter on March 29, 2023 in Pittsburgh, Pennsylvania. Many schools, including Oakland Catholic and Pittsburgh Central Catholic, were targeted as part of what authorities are calling "computer-generated swatting calls." Many agencies, including state and municipal police, are conducting investigations. (Photo by Jeff Swensen/Getty Images)

Swatting Attacks and Nihilistic Violent Extremism: A Primer

Swatting attacks are sometimes dismissed as pranks or hoaxes. But they’ve wreaked havoc on college campuses this year and a network of extremists is behind many of them.

Assassinations in America: How Political Violence Became Personal

Americans can no longer turn to their political leadership to avert the catastrophe of political violence.

Children, Young People and the Emerging Terrorism Threat Landscape

Prevention efforts must shift toward a model that addresses the systemic drivers and underlying causes of youth vulnerability to violent extremism.
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The Just Security Podcast: Misogyny’s Role in Violent Extremism

Cynthia Miller-Idriss joins Tom Joscelyn to discuss her new book, Man Up: The New Misogyny and the Rise of Violent Extremism.
Right-wing white nationalists hold flags with signs like "white pride worldwide."

How Misogyny Fuels Violent Extremism

Taking a closer look at where misogynist beliefs come from can help shed light on the pathways to violence — and how to interrupt them.

Book Release – Perpetual War and International Law: Enduring Legacies of the War on Terror

Introducing a new OUP book interrogating how precedents set in the post-9/11 era continue to shape contemporary conflicts.
Firefighters walk towards one of the tower at the World Trade Center before it collapsed after a plane hit the building September 11, 2001 in New York City. (Photo by Jose Jimenez/Primera Hora/Getty Images)
The Just Security Podcast

The Just Security Podcast: Murder on the High Seas? What You Need to Know about the U.S. Strike on the Caribbean Vessel

Rebecca Ingber and Brian Finucane join Tess Bridgeman to unpack what you need to know about the U.S. strike on a purported drug trafficking vessel in the Caribbean.
Taliban personnel shout slogans as they celebrate the fourth anniversary of their takeover of Afghanistan near the Kabul Polytechnic University in Kabul on August 15, 2025. (Photo by WAKIL KOHSAR/AFP via Getty Images)

The Experience of Time and Tyranny Under the Taliban in Afghanistan

The clock may seem to tick at the same rate for everyone, but its rhythm is felt differently under the weight of the Taliban's draconian rule.
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