What has happened to Europe's air traffic controllers?

Staff shortages and strikes are leaving passengers and airlines frustrated. So why are there such problems in recruitment? Industry bodies estimate over the next decade we could be short of 70,000 air traffic controllers around the world. We hear what is luring some controllers out of Europe and why others are leaving the sector all together. And what could the financial and safety implications be for passengers and airlines?Presenter: Will Bain Producer: Josh Martin(Photo: NATS Swanwick ops room,. NATS is a UK-based air traffic control company. Credit: NATS)