The attack on Brazil's congress and presidential palace Sunday was reminiscent of the attack on the U.S. Capitol on January 6, 2021. Both are part of a broader transnational extremist movement.We talk about that with Guilherme Casarões of the Getulio Vargas Foundation in Sao Paulo, and with NPR correspondents Shannon Bond and Sergio Olmos.In participating regions, you'll also hear a local news segment to help you make sense of what's going on in your community. Email us at [email protected].