How China built 'iPhone City' with billions in perks for Apple's partner

Zhengzhou, China

A VAST, boxy customs centre acts as a busy island of commerce deep in central China.

Government officers race around wooden pallets piled high with boxes - counting, weighing, scanning and approving shipments. Unmarked trucks stretch for more than a mile awaiting the next load headed for Beijing, New York, London and dozens of other destinations.