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U.S. domestic terrorism trends

Comparison of far-right and far-left extremism in the U.S. since 1990, including fatalities and incident counts

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2 results
Jan 19, 2026

Which major U.S. studies track domestic extremist fatalities by ideology and how do their methodologies differ?

Three types of major U.S. studies track domestic-extremist fatalities by ideology: government-syntheses and NIJ summaries drawing on multiple datasets, academic cross-ideological analyses using curate...

Jan 16, 2026

How do extremist ideologies and recruitment methods differ between far right and far left movements?

Far-right and far-left extremisms share structural traits—anti-democratic certainty, friend–foe framing, and exploitation of grievances—but their core goals, target identities, and favored recruitment...