Iran War’s Secondary Effects Shape 2026 US Violent Extremism
Brief
Executive Summary
The United States (US) will almost certainly remain at heightened threat from physical threat activities conducted by homegrown and domestic violent extremists (HVEs and DVEs, respectively) during the next twelve months.
Since the last installation of this report in July 2025, there has been a substantial increase in mass-casualty attacks and attack plots by Islamic State (IS) supporters, assassinations and attempted assassinations of US government officials and high-profile public figures by anti-government and anti-authority violent extremists (AGAAVEs), and multiple plots by anarchist violent extremists (AVEs) to cause substantial damage to facilities using destructive devices.