Paul Walsh and Bill Lukitsch report that the FAA grounded all departing flights nationwide on the afternoon of 13 November 2026 because of communications problems at regional air traffic control centers, the first such ground stop since January 2023, with no restart timeline. Transportation Secretary Sean Duffy said technicians are investigating; Homeland Security Secretary Markwayne Mullin saw no sign of an attack, and analyst Henry Harteveldt warned the stop would cause "absolute chaos" for travelers, including stranded passengers and disrupted Gophers and Bulls trips.