US grounds all flights for hours over tech issues, prompting travel chaos

In brief

US grounds all flights for hours over tech issues, prompting travel chaos BBCWhat we know about the US ground stop and what to do if your flight is affected BBCTravelers face disruption as some US flights resume after nationwide ground stop CNNDisruptions Persist as Air Travel Recovers from Nationwide Ground Stop: Live Updates The New York TimesNationwide flight delays and cancellations continue after FAA lifts…