People who stormed the Capitol were radicalized by what they consumed online and in social media. That should sound familiar: Ten years ago, ISIS used a similar strategy to lure Americans to Syria. Dina Temple-Raston reports on the pattern of radicalization. Tom Dreisbach explores familiar warning signs in the past of one Capitol siege suspect — including hateful speech and violent rhetoric. More reporting from the NPR Investigations team is here.In participating regions, you'll also hear from local journalists about what's happening in your community.Email us at considerthis@npr.org.