主播大秀

As a billion Chinese take to the air, Ed Butler asks travel writer Simon Calder whether the world's tourism industry can cope, while Mariko Oi reports from the Singapore Airshow on the scramble to train up enough pilots.

Plus interviews with Chris Goater of the International Air Transport Association, and Dr Zheng Lei of the Centre for Aviation Research at Surrey University.

(Picture: A group of tourists sits on a gondola in Venice; Credit: Andrea Pattaro/AFP/Getty Images)