New York City witnesses a defining moment as Zohran Mamdani steps into office and makes history as the city’s first Muslim and South Asian mayor, choosing to take his oath on deeply personal family Qurans and a rare 200-year-old copy from the New York Public Library’s Schomburg Center collection. WATCH 

A series of deadly attacks across multiple continents has reignited fears about whether ISIS is quietly making a comeback. From a mass shooting during a Hanukkah celebration in Sydney to deadly violence in Syria and the United States, officials say recent attacks were either inspired by or linked to Islamic State ideology. While ISIS no longer controls territory like it once did, security experts warn the group has adapted rather than disappeared.