New York Magazine's liveblog tracks the FAA's November 13, 2026 nationwide ground stop over a systemwide telecommunication outage, which grounded flights after 3:30 p.m., left more than 13,000 flights delayed or cancelled, and prompted the FAA to ask Mexico and Eurocontrol to halt air traffic to the U.S. Reported causes centered on a communications network overseen by L3Harris that CBS and the Wall Street Journal said crashed during a reboot, while Homeland Security Secretary Mullin said there was no indication of a nefarious attack; quotes from stranded passengers and controllers fill out the day.