NPR examines the ICE campaign against the Venezuelan gang Tren de Aragua. How real and how extensive is the gang's presence in the U.S.? Are the Trump administration's claims even verifiable?

MANASSAS, Va. (AP) — The alleged leader of the violent MS-13 street gang on the East Coast has been arrested in Virginia, U.S. Attorney General Pam Bondi announced Thursday. Bondi lauded the the ...