The chaos from the FAA's nationwide ground stop lingered into early Saturday morning, with thousands of flights cancelled as airlines played catch-up.Why it matters: Millions of travelers will find themselves inconvenienced over what the government says was simply old technology that couldn't keep up with modern upgrades. Driving the news: As of 5:15 a.m. ET Saturday, nearly 3,300 flights into, out of, or within the United States were already cancelled for the day, per FlightAware.