What went wrong with the electronic passport gates at UK airports?

The Guardian - Passengers waited more than three hours for passport checks on Tuesday, as the countrys 270 e-gates malfunctionedThousands of passengers were left waiting in queues for more than three hours at airports, on Tuesday evening, after a nationwide failure of the electronic passport gate technology system.Nearly all major British airports were affected as the countrys 270 e-gates, the automated facial recognition systems at the border, were closed for more than four hours. Continue reading...