• Guantanamo Bay: Twenty Years of Counterterrorism and Controversy

    The U.S. military detention center at Guantanamo Bay, Cuba, has generated intense debate for two decades, raising enduring questions about national security, human rights, and justice.

  • 9/11 Survivors’ Exposure to Toxic Dust and the Chronic Health Conditions That Followed Offer Lessons That Are Still Too Often Unheeded

    After the 9/11 attack, more than 100,000 responders and recovery workers from every U.S. state – along with some 400,000 residents and other workers around ground zero – were exposed to a toxic cloud of dust that fell as a ghostly, thick layer of ash and then hung in the air for more than three months. The World Trade Center dust plume consisted of a dangerous mixture of cement dust and particles, asbestos and a class of chemicals called persistent organic pollutants. The dust also contained heavy metals that are known to be poisonous to the human body and brain, such as lead and mercury, and PCB.

  • The Oath Keepers Data Leak: Unmasking Extremism in Public Life

    A data leak revealed the information of thousands of people whose names were in an Oath Keepers database as having paid for a membership at some point. The Oath Keepers are an anti-government extremist group associated with the militia movement.

  • Two Constables, Four Police Chiefs and More Than 3,000 other Texans Were Members of the Oath Keepers: Report

    A recent analysis of Oath Keepers’ membership rolls leaked last year found that Texas had more members of the far-right extremist group than any other state — and the most who worked as elected officials, law enforcement officers or members of the military.

  • A Protein Could Prevent Chemical Warfare Attack

    A team of scientists has designed a synthetic protein that quickly detects molecules of a deadly nerve agent that has been classified by the United Nations as a weapon of mass destruction and could be used in a chemical warfare attack.

  • The Accelerating Threat of the Political Assassination

    The pattern of terrorism in recent years has arguably been trending in the direction of political assassination, especially in the United States. Bruce Hoffman and Jacob Ware write that assassins have long believed that their vicious acts would change the course of history. “The emerging trend is due in no small part to the reemergence of so-called “accelerationism” as a distinct violent extremist strategy. For extremists seeking to sow chaos and speed up some cataclysmic societal collapse, high-profile politicians provide an attractive target.”

  • Foreign Fighters in Ukraine: What Concerns Should Really Be on the Agenda?

    A solid body of research had already explored the global rise in violent extremism and radicalization after battle-hardened fighters had returned home from the Middle East. Initially, there were concerns about similar cases radiating out from Ukraine, with a shade of right-wing extremism. Yet the current picture of foreign fighters in Ukraine differs both from the Middle East and from the fighting in the country’s east during the “gray-zone” phase of the conflict with Russia that began in 2014.

  • What Happened When Twitter and Other Social Media Platforms Cracked Down on Extremists

    In a Q&A with ProPublica reporter A.C. Thompson, former intelligence officer and data scientist Welton Chang explains how conspiracy theorists and violent racists fled to smaller platforms. Once there, their remarks festered and spread.

  • Antisemitic Incidents in United States Reached All-Time High in 2021

    Antisemitic incidents reached an all-time high in the United States in 2021, with a total of 2,717 incidents of assault, harassment and vandalism. This represents the highest number of incidents on record since 1979 – an average of more than seven incidents per day and a 34 percent increase year over year. Incidents reported in all 50 states. Attacks against synagogues and JCCs increased 61 percent.

  • U.S. Schools Increase Security, and Some Arm Teachers

    As classes are about to resume, many school districts have sought to boost security. Some are arming teachers to provide a line of defense against school shooters. It remains to be seen whether teachers toting firearms will save lives or do more harm than good.

  • Five Years After “Unite the Right”: Reflections on Charlottesville for Today’s Threat Landscape

    Five years ago, racially or ethnically motivated violent extremists from across the United States traveled to Charlottesville, Virginia for the “Unite the Right” rally. Nicholas Rasmussen and Sarah Kenny write that “Unite the Right” is best appreciated as a watershed moment in U.S. politics. “With the clear vision of hindsight, the incidents in Charlottesville five years ago sounded a wakeup call about where the United States may be headed.” The very real threat “of political violence and radicalization that flow from the highly toxic political climate we currently live in, make for a turbulent domestic threat landscape in both city parks and virtual chatrooms.”

  • Mar-a-Lago Search Sparks Antisemitic Conspiracy Theories Online

    Antisemitic conspiracy theories circulated widely on social media after the search at Mar-a-Lago. Extremist groups and influencers have used the faith of the judge who signed the search warrant, Bruce Reinhart, as ammunition to promote unfounded claims that Jewish individuals are controlling the FBI and other government entities in order to take down Donald Trump and defend the “deep state.”

  • Islamists Launch Three New Magazines to Succeed Notorious "Inspire"

    Islamist extremists online are taking note of three new English language publications—two linked to Al Qaeda and one from ISIS. All three magazines are positioned to fill the void left by the dissolution of Al Qaeda’s notorious Inspire magazine. 

  • U.S. Charges Iranian Operative with Plotting to Kill John Bolton

    The U.S. Justice Department has charged a member of Iran’s elite Islamic Revolutionary Guards Corps (IRGC) in connection with an alleged plot to kill former White House national-security adviser John Bolton.

  • A Century-and-a-Half Look at the Waves of Global Terrorism

    Twenty years ago, a 15-page article – “The Four Waves of Rebel Terrorism and September 11” — by terrorism expert David Rapoport helped students of terrorism place the 9/11 attacks in perspective. Rapoport has now published a 440-page book on the topic, and Tim Wilson writes that “[Rapoport’s] provocative sketch of how global terrorism emerged has continued to hold the field since the immediate aftermath of 9/11. And this new volume allows him to present it in fuller, and richer, brush-strokes.”