“The immediate feeling is, it’s a huge, huge relief,” says Max Amini. The Iranian-American comedian is Zooming in from his home in Los Angeles the day after news broke that Donald Trump’s ultimatum to Iran — that “a whole civilization would die tonight” — would not come to pass, and that the United States would attempt (ultimately unsuccessful) negotiations with the country it began bombing at the end of February. Although he was born in Tucson, Ariz., Amini, 45, is the son of Persian parents who immigrated to the states after the 1979 revolution. When he was 8, they returned...