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Index/Topics/Online Radicalization and U.S. Domestic Attacks 2024-2025

Online Radicalization and U.S. Domestic Attacks 2024-2025

The link between online radicalization and domestic attacks in the U.S., including the role of social media and extremist ideologies.

Fact-Checks

2 results
Feb 8, 2026

What research exists on the political effects of high-volume misinformation campaigns like the 'firehose of falsehood' in U.S. politics?

Academic and policy research characterizes the “” as a high-volume, rapid, multi-channel propaganda strategy that can erode factual consensus, amplify partisan divides, and reduce trust in institution...

Jan 22, 2026

What evidence links recent U.S. domestic attacks to online radicalization or foreign terrorist messaging?

A growing body of open-source and government reporting finds clear, case-level links between many recent domestic attacks and —especially for lone actors and small networks who consume and circulate e...