French President Emmanuel Macron leaves, center, a high school Friday Oct.16, 2020 in Conflans Sainte-Honorine, northwest of Paris, after a history teacher who opened a discussion with high school students on caricatures of Islam's Prophet Muhammad was beheaded. French President Emmanuel Macron denounced what he called an "Islamist terrorist attack" against a history teacher decapitated in a Paris suburb Friday, urging the nation to stand united against extremism. (Abdulmonam Eassa, Pool via AP)