China's big step in rural reform

The bare lightbulbs, unheated rooms and elderly residents of the whitewashed village of Yangwang in eastern China make it seem an unlikely place for an experiment in cutting-edge satellite technology.

This tiny village in Anhui province was home to a pilot project that for the first time mapped farmers' land holdings, putting it on the front line of China's efforts to build a modern agricultural sector that can underpin the country's food security - a policy priority for the Communist Party.