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Antioch, Tenn., Shooter Inspired by Broad Extremist Beliefs and Previous Mass Killers

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Antioch Tennessee shooter main
On January 22, 2025, a 17-year-old student opened fire inside the cafeteria at Antioch High School in Nashville, Tennessee. The shooter killed one student and injured another before taking his own life.  Preliminary research by the ADL Center on Extremism (COE) found the shooter, who was Black, was fueled by violent misanthropic views, anti-Black hate and hateful extremist beliefs including inceldom and antisemitism. He subscribed to broad accelerationist beliefs, which hold…
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“Create Just Worlds": Can We Break Extremism's Hold on Gaming?

Podcast
 Episode 4.5: “Create Just Worlds": Can We Break Extremism's Hold on Gaming?Video games are supposed to be fun and provide players with safe, supportive communities. Unfortunately and unsurprisingly, extremists are ruining gaming for everyone. On this month’s episode of extremely, Oren Segal and Jessica Reaves talk to Mariana Olaizola Rosenblat, Policy Advisor on technology and law at the NYU Stern Center for Business and Human Rights. Rosenblat studies the societal impact of…
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The Terrorgram Collective: International Terrorists Promoting Violence and White Supremacy

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A portion of the cover of The Hard Reset, the most recent publication released by the Terrorgram Collective.
On January 13, 2025, the United States Department of State designated the Terrorgram Collective and three of its foreign leaders as Specially Designated Global Terrorists (SDGTs), formally including Terrorgram among other international terrorist groups.   Terrorgram is a decentralized network of white supremacist, neo-Nazi and accelerationist groups and individuals connected primarily through the encrypted social networking app Telegram, with the collective goal of promoting stochastic…
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Los Angeles Wildfires Trigger Conspiracy Theories and Hate

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A firefighter stands on top of a fire truck to battle the Palisades Fire while it burns homes on the Pacific Coast Highway amid a powerful windstorm on January 8, 2025 in Los Angeles, California. (Apu Gomes/Getty Images)
As devastating wildfires continue to decimate sections of Los Angeles, California, extremists and conspiracy theorists are spreading familiar falsehoods, blaming the blaze on common scapegoats such as diversity initiatives, Jews and nefarious government “false flags.” Fires that began in the Pacific Palisades area on January 7, 2025, are now part of a broader set of blazes across the city. Officials believe the fires were caused primarily by drought conditions, high winds and the…
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Deadly New Orleans Attack Fuels Conspiracy Theories About Immigrants, Israel

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Photo credit: Michael DeMocker/Getty Images
The deadly New Year’s attack in New Orleans, Louisiana, left a city reeling and social media awash in hateful lies and conspiracy theories about immigrants, Israel and a government cover-up.   In the early morning of January 1, 2025, 42-year-old Houston, Texas resident Shamsud-Din Jabbar, drove his car into a crowd of revelers on Bourbon Street, killing at least fourteen people and injuring dozens more before he was shot and killed by police. While law enforcement is still…
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Unity of Fields: What You Need to Know

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Unity of Fields shares an “anonymous” photo submission of vandals spray-painting Google offices in San Francisco on the first anniversary of the October 7, 2023 attack
Unity of Fields (UoF), formerly Palestine Action U.S., is a radical far-left, anti-Zionist “direct action network” that engages in calls for violence against those it considers supportive of Israel or Zionism, or “complicit” in Israel’s alleged actions, and promotes aggressive, targeted protests and the defacement of property belonging to Jewish and non-Jewish organizations and individuals. In May 2025, Unity of Fields appeared to justify the…
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Hayat Tahrir Al-Sham: Extremist Record and Regional Ambitions of Syria’s New Rulers

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On November 27, 2024, Syrian rebel groups launched a major offensive against the regime of Bashar Al-Assad. Within days, forces led by Hayat Tahrir Al-Sham (HTS), and supported by the Turkey-backed Syrian National Army and a range of anti-Assad militias, had taken Aleppo and Hama. On December 8, 2024, the rebel forces took Damascus, forcing Assad to flee the country. The HTS leadership quickly assumed control of government institutions, appointed an interim prime minister, and declared itself…
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Increase in Islamist Extremist Terror Incidents Targeting the U.S. in 2024, ADL Evaluation Finds

Press Release
New York, NY, December 2, 2024 … Islamist extremist terror incidents targeting the United States increased in 2024 after several years of reduced activity, according to an evaluation released today by the ADL (Anti-Defamation League) Center on Extremism. Federal and state authorities have arrested individuals in seven different incidents on charges related to five unsuccessful plots and two actual attacks in the past year. At least three of these incidents targeted Jewish or…
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Islamist Terror Incidents Targeting U.S. Increase in 2024

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An illustrative composite image of the ISIS (left) and Hamas (right) flags
January 2, 2025, Update: In the month since this article was originally published, at least two more Islamist-related terror incidents have occurred in the United States, including the deadly vehicular attack in New Orleans, Louisiana, on New Year’s Day 2025, which killed 14 people and wounded dozens more. The New Orleans incident was the deadliest Islamist terror attack in the United States since the 2016 shooting at Pulse nightclub in Orlando, Florida, which killed 49 people. Islamist…
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The Anti-Defamation League’s Task Force on Middle East Minorities condemns the murder of Rabbi Kogan in the United Arab Emirates

Press Release
Rabbi Kogan’s murder highlights vital need for UAE to prioritize fight against extremism New York, NY, November 25, 2024 ... The Anti-Defamation League’s (ADL) Task Force on Middle East Minorities condemns the tragic murder of Chabad emissary Rabbi Zvi Kogan in the United Arab Emirates. This horrific act underscores the urgent need to confront rising extremism, antisemitism, and hatred in the Middle East. We appreciate the quick action by UAE authorities to apprehend three…
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Millions of Examples of Extremist and Antisemitic Content Found on Steam, New Platform-Wide ADL Analysis Finds

Press Release
New York, NY, November 14, 2024, …  More than 1.8 million unique pieces of extremist or hateful content, including explicitly antisemitic, neo-Nazi and Islamist terrorist material, were identified on Steam, the world’s largest and most popular online gaming marketplace, new research from ADL (Anti-Defamation League) finds. In an unprecedented platform-wide capture of all publicly available profiles, groups and comments (as of July 2024), the ADL Center on Extremism (COE)…
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extremely Newsletter

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Welcome to extremely™, a weekly newsletter from the ADL Center on Extremism and your go-to resource for emerging trends and developments in extremism and hate. In This Week's NewsletterA Devastating 1967 Mistake and an Enduring Antisemitic Lie    The attack on the U.S.S. Liberty was devastating. On June 8, 1967, Israeli planes and patrol boats struck the American intelligence-gathering vessel at the height of the Six-Day War, mistaking it in the chaos of the high-intensity…
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Declaración de la ADL sobre el pogromo contemporáneo en Ámsterdam

Press Release
Miles de israelíes perseguidos y brutalmente agredidos en ataque antisemita en Ámsterdam  Nueva York, NY, 8 de noviembre de 2024… La Liga Antidifamación (ADL) expresó hoy su profundo horror e indignación por el violento, generalizado y aparentemente premeditado y coordinado ataque antisemita de anoche contra los aficionados al fútbol israelíes en Ámsterdam, tras el partido entre el Maccabi Tel Aviv y el Ajax. Miles de israel…
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ADL Statement Regarding Modern-Day Pogrom in Amsterdam

Press Release
Scores of Israelis Hunted Down, Brutally Assaulted in Antisemitic Attack in Amsterdam  New York, NY, November 8, 2024 ... ADL (the Anti-Defamation League) today expressed its deep horror and outrage at the violent, widespread, and apparently premeditated and coordinated antisemitic attack on Israeli soccer fans in Amsterdam, following a game between Maccabi Tel Aviv and Ajax last night.    Scores of Israelis were hunted down, brutally assaulted and injured. The attackers’…
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"We're in Trouble": The 2024 Election and the Rise of Disinformation

Podcast
 Episode 4.4: "We're in Trouble": The 2024 Election and the Rise of DisinformationIn this special election episode of extremely, Oren Segal and Jessica Reaves sit down with not one but two (!!) dis/misinformation experts. Dr. Claire Wardle is an associate professor in the Department of Communication at Cornell University, specializing in user-generated content and misinformation, and Liz Landers is a national correspondent leading the disinformation desk at Scripps News, covering the…
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PFLP 'Charity' Arm Samidoun Has Long Played a Role in Anti-Israel Movement on U.S. Campuses

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Images from rallies co-sponsored by Samidoun Seattle and SUPER UW
Anti-Zionist group Samidoun, sanctioned by the U.S. in October 2024 for its role as a “sham charity” operating as an international fundraising arm of the U.S. government-designated terror organization the Popular Front for the Liberation of Palestine (PFLP), has long played a role in the anti-Israel movement on U.S. campuses. The group, which the U.S. considers to be a front for the PFLP in countries where it is declared a terrorist organization, has been featured as a “pro…
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The ADL Debunk: False Narratives Around the 2024 Presidential Election

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An image of a U.S. flag (Pixabay)
False and misleading narratives about the upcoming 2024 U.S. presidential election are spreading widely among extremists and purveyors of hate and conspiracy theories. While some of the most common mis- and disinformation narratives circulating today were also prominent during the 2020 election and the 2022 midterms, others are newer — inspired by current events in America and around the world. These narratives are also being deployed using a range of strategies and tactics…
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Anti-Israel Activists Pay Tribute To 10/7 Architect Yahya Sinwar, Reflecting Pattern of Glorifying “Martyred” Terror Chiefs

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An anti-Israel protester displays a photograph of Hamas leader Yahya Sinwar in New York, NY, on October 18, 2024, two days after he was killed by Israeli military forces in Gaza.
After Israeli military forces killed Hamas leader and October 7 architect Yahya Sinwar in Gaza on October 16, 2024, U.S. anti-Israel activists quickly responded with praise and veneration for the terrorist who masterminded the deaths of approximately 1,200 Israelis and foreign nationals and the abduction of some 250 people just over one year ago. Student groups, including numerous chapters of Students for Justice in Palestine (SJP), were among the loudest voices memorializing Sinwar with…
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ADL: Death of Arch-Terrorist Yahya Sinwar Truly is ‘Justice Served’

Press Release
New York, NY, October 17, 2024 … ADL (the Anti-Defamation League) today welcomed the death of Hamas arch-terrorist Yahya Sinwar at the hands of an Israel Defense Forces patrol in Gaza. Jonathan A. Greenblatt, ADL CEO and National Director, issued the following statement: The reported death of arch-terrorist Yahya Sinwar at the hands of an ordinary IDF patrol truly is justice served. As we have seen with the killing of Bin Laden, Baghdadi, Nasrallah, and other evil terrorist masterminds,…
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