Hoda Muthana, who left Alabama for the Islamic State group’s self-declared caliphate four years ago, at the Al-Hawl refugee camp in Syria, Feb. 17, 2019. After enduring three marriages to Islamic State fighters and witnessing executions like those she had once cheered on social media, Muthana says she is deeply sorry and wants to return home. (Ivor Prickett/The New York Times) XNYT190 XNYT190