Migrant workers are everywhere: girls from Anhui serve in Urumqi restaurants, and tough, tiny Hunanese put up pylons high in mountain passes.

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In September, we were in Urumqi, China, near the Kazakhstan border.

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The G30 is the longest road in China, running for 4, 400km (2, 700 miles) from the coast of eastern Jiangsu province to Urumqi, close to the Kazakhstan border.

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This time, China allowed foreign reporters into Urumqi.

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So is the Urumqi-Almaty road.

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