Visitors learn the art of being patient

Expo visitors are willing to wait as long as it takes to get inside a pavilion, Matt Hodges finds out why.

Ding Xiaohuo is never going to ski the Alps or see the changing of the guard outside Buckingham Palace. Like most Chinese his age, he'll never even see a real passport with his photo on it.

The veteran farmer from Sichuan province says he's too old to travel overseas and he couldn't afford it anyway. Even the train journey to Shanghai took 30 hours and burned through his savings.