US Secretary of Transportation: We did not lose any communications or radar systems during the flight suspension period.
The problem was caused by outdated equipment, which led to the disruption of air traffic in the United States.
Network switches and routers were overloaded due to massive data flow, causing them to fail.
We are now calling for a $50 billion appropriation to modernize air traffic control systems.
Tens of thousands of passengers are stuck due to air traffic disruption, and many of them may spend the night in airports.