92 Articles
👁 The logo of the Federal Bureau of Investigation (FBI) is seen at the Los Angeles Federal Building in May 2025. (Photo by PATRICK T. FALLON/AFP via Getty Images)
How the DOJ is Prosecuting Nihilistic Violent Extremism as Domestic Terrorism
The DOJ has charged an alleged nihilistic violent extremist with conspiracy to provide material support to terrorists for the first time.
Dec. 9, 2025
Luke Baumgartner and Barry Jonas
👁 The Just Security Podcast Cover Image
The Just Security Podcast: Examining the Trump Administration’s New Antifa Designations
Tom Joscelyn talks with former DOJ counsel Tom Brzozowski about new Antifa designations, their civil liberties impact, and changing limits on speech and association.
Nov. 17, 2025
Thomas E. Brzozowski and Tom Joscelyn
👁 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.
Oct. 27, 2025
Thomas E. Brzozowski
👁 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.
Oct. 21, 2025
Michael Jensen and Amy Cooter
👁 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.
Oct. 7, 2025
Mackenzie Harms
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Assassinations in America: How Political Violence Became Personal
Americans can no longer turn to their political leadership to avert the catastrophe of political violence.
Oct. 1, 2025
Bruce Hoffman and Jacob Ware
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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.
Sep. 26, 2025
Bettina Rottweiler, Caitlin Clemmow and 2 more
👁 The logo of the Federal Bureau of Investigation (FBI) is seen at the Los Angeles Federal Building in May 2025. (Photo by PATRICK T. FALLON/AFP via Getty Images)
Setting the Record Straight on Nihilistic Violence
Confusion over “nihilistic violence” risks mislabeling attacks, hindering efforts to prevent mass violence by non-ideological subcultures.
Jul. 1, 2025
Steven Rai and Cody Zoschak
👁 The sign at the FBI headquarters building reads, “J. Edgar Hoover FBI Building.”
Nihilistic Violent Extremism: A Valuable Stride Forward in American Counterterrorism
Nihilistic violent extremism might even be considered part of a fourth generation of online radicalization, blurring the lines between killers and terrorists.
May 21, 2025
Jacob Ware
👁 Members of the Proud Boys wearing orange hats stand in front of the U.S. capital.
Nine Experts on the Impact of President Trump’s Pardons and Commutations for January 6 Offenders
We asked nine experts about what clemencies might herald for the future of the rule of law, political violence, and extremism.
Feb. 3, 2025
Dean Jackson and Justin Hendrix
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Eleven Precedents of ISIS-Inspired Vehicle Rammings: Precursors to New Orleans Attack
On New Year’s Day, at least 14 people were killed and dozens more wounded when a man drove a rented pickup truck into a crowd of revelers on Bourbon Street, New Orleans. The…
Jan. 4, 2025
Tom Joscelyn
👁 Two armed law enforcement officers stand in a grassy area, watching action off-screen.
The Growing Threat of State Domestic Terrorism Laws to the First Amendment
Since political violence is already criminalized under other state and federal laws, state domestic terrorism laws are arguably unnecessary. These laws create serious, and often…
Sep. 5, 2024
Nick Robinson