 The planes that are in the air will continue to fly to their destination. They're in contact with air traffic controllers. But those that were scheduled or are somewhere at the airport now, there's going to be a ripple effect. The airlines are going to have to rebook a lot of people today and reschedule a lot of flights. There are going to be a lot of delays and a lot of inconvenience over the next several days, the next several hours. And it's not just in the U.S. Key international airports, London, Berlin, Amsterdam, Sydney, Australia are all reporting problems this morning.