Terrorism & Violent Extremism

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

Highlights:

In this handout photo provided by the Salvadoran government, members of the Salvadoran army stand guard at the gates of the Terrorism Confinement Center (CECOT) at CECOT on March 16, 2025 in Tecoluca, El Salvador.

Deportation to CECOT: The Constitutional Prohibition on Punishment Without Charge or Trial

Sending migrants to El Salvador’s CECOT prison raises grave constitutional concerns under the Fifth and Sixth Amendments.
A line of people, some under umbrellas, with a woman at the center holding a poster with photos on it and the message, in Spanish, saying, "He has worked for a solid company since he was 18. An investigation is urgently needed for his prompt release. No more unjust detentions."

El Salvador’s Authoritarian Slide Should Hold Lessons – Not Examples – for the U.S.

In fighting rampant gang violence, President Bukele has turned El Salvador into even more of a lawless, opaque State.
General view of the G20 finance ministers meeting as Brazilian Finance Minister Fernando Haddad speaks in Sao Paulo, Brazil, on February 28, 2024.

Is the New Global Order a Boon for International Taxation Collaboration?

The U.S. withdrawal from international forums may open possibilities for other cooperation. The tax reform agenda is a case in point. 
People walk outside the Supreme Court building in Jerusalem on April 8, 2025.

Judging Deprivation – Humanitarian Aid in Gaza Before Israel’s Supreme Court and Beyond

A recent decision from Israel's Supreme Court exposes some of the underlying tensions and inadequacies within international humanitarian law in countering conflict-induced civilian…
Signage and flowers are placed on a tree reads "ICE kidnapped our neighbor"

The Fox TV Problem with Deporting International Students

The SCOTUS decision in FCC v. Fox TV emphasized fair notice, a bedrock requirement of due process that could shield students from removal.
U.S. President Donal Trump shakes hands with El Salvador Presidnet Nayib Bukele next to an American flag.

The New Transparency Rules and the El Salvador Detention Agreement

A 2022 statute could force disclosure of any U.S.-El Salvador agreements connected to the facility where Kilmar Abrego Garcia is detained
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2,090 Articles
Visualization of Data and U.S. Congress

Vanishing Accountability? The Need to Preserve U.S. Federal Financial Transparency

As threats to open data and financial accountability grow in the United States, it is essential to protect transparency at all costs.
Screenshot of Form G-325R Biographic Information (Registration)

The Immigration Registration Trap Goes Live

When a court finally addresses the merits of the rule, there are strong procedural and substantive grounds to challenge its implementation.
The Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) is seen on the podium

What Just Happened: The Trump Administration Repealed Zero Tolerance Policy for Rogue Gun Dealers

The Trump administration's repeal of a zero tolerance policy for rogue gun dealers will threaten US public safety and relations with Mexico.
Two diamond miners in yellow helmets and red vests look out over an expansive diamond mine.

In Potential Russia Sanctions Removal, Diamonds Illustrate the Complexities

The web of factors for the diamond industry in any lifting of sanctions could be instructive for other sectors too.
Abstract image of human eye with retinal circuit on a black background.

The Dangerous Foreign Intelligence Exception Loophole in the Hasbajrami Decision

The Hasbajrami decision’s expansive view of the FISA foreign intelligence exception threatens to swallow the rule that the Fourth Amendment's warrant requirement applies to U.S.…
The photo shows four very long, shallow docked boats arrayed next to each other diagonally across the image, seemingly made of iron or metal, carrying belongings and one with a number of adults and children in it. Other people are on land at the back of the image, next to a dirt road beside fields stretching into the distance.

Visa Revocations Disregard South Sudan War Risks, Overlook U.S. Communities’ Embrace of Refugees

The breadth and depth of support for South Sudanese across red and blue states has origins in evangelical backing for the young country.
People participate in a candlelight vigil in front of the main offices of the Centers for Disease Control

Dropping U.S. Biodefenses: Why Cuts to Federal Health Agencies Make Americans Less Safe

Top experts write that the Trump administration's sweeping changes to HHS will make the United States highly insecure, not healthy.
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.
A man with tattoos on his arms is handcuffed behind his back.

The Missing Due Process for Gang Allegations

There is a long history of immigration agencies using tattoos and a set of notoriously flawed gang databases to bring false or weak claims of gang involvement.
Two women and a young girl walk past an archway.

No Way Home: How an ISIS-era Law Prevents Yazidi Women and Their Children Born of Conflict from Returning to Sinjar, Iraq

Yazidi women, who survived acts of sexual violence and bore children from ISIS militants, face an Iraqi law that designates their children Muslim.
A police officer shows a gun

What A Corrupt Police Network in the Dominican Republic Reveals About Arms Trafficking

How do arms trafficking and state corruption networks in Latin America operate, and how they can be disrupted?
Palestinian kid adds fuel to a fire amidst rubble.

Gaza and Israel’s Renewed Policy of Deprivation

Israel’s decision to cut Gaza off from essential goods violates IHL and reactivates crimes charged in the ICC’s arrest warrant for Netanyahu, writes Dannenbaum.
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