Extremism Roundup 2026-03-19

Hostile Foreign Influence March 21, 2026

Meta Disrupts Iranian Social Media Influence Campaign Targeting U.S. Users

Hostile Foreign Influence March 21, 2026

Iranian Intelligence Agent Convicted in U.S. Assassination Plot

School Threats March 21, 2026

FBI Investigates Student Linked to Potential Violence Plans at Siena University

School Threats March 21, 2026

Armed Man in Tactical Gear Arrested After Entering Texas Elementary School

Antisemitism March 21, 2026

Two Jewish Men Assaulted at Santana Row in Possible Hate Crime

Hate Crime March 21, 2026

Michigan Man Identified in Vehicle Ramming and Shooting at Synagogue

Antifa March 21, 2026

Nine Antifa Cell Members Convicted in Attack on Texas ICE Detention Center

Islamic Extremism March 21, 2026

Austin Gunman Kills Two, Wounds 14

ISIS March 21, 2026

Two Men Charged in Plot to Use Explosives During New York Protest

Islamic Extremism March 21, 2026

Old Dominion University Shooting Suspect Had Previous Terrorism Conviction