Iranian demonstrators chant slogans as they set fire a representation a makeshift U.S. flag during an annual rally in front of the former U.S. Embassy in Tehran, Iran, Monday, Nov. 4, 2019. Reviving decades-old cries of "Death to America," Iran on Monday marked the 40th anniversary of the 1979 student takeover of the U.S. Embassy in Tehran and the 444-day hostage crisis that followed as tensions remain high over the country’s collapsing nuclear deal with world powers. (AP Photo/Vahid Salemi)