Motorbikes drive past a billboard showing a graphic calling for revenge on Imam Hussein, one of Shiite Islam's most beloved saints, who was killed in a 7th century battle, and the late Iranian Supreme Leader Ayatollah Ali Khamenei, who was killed during the U.S. and Israel strike on Feb. 28, in a square in downtown Tehran, Iran, Saturday, Aug. 1, 2026. (AP Photo/Vahid Salemi)