Failing to replace cables with fiber optics led to the cancellation of more than 15,000 flights in two days and exposed the challenges to modernise American air traffic control
By Chris Isidore, CNN In some respects, the US air traffic control system works much better than you might think, although it would be difficult to convince the more than 1 million passengers whose travel plans have been disrupted in recent days.
Failing to replace cables with fiber optics led to the cancellation of more than 15,000 flights in two days and exposed the challenges to modernise American air traffic control