大象传媒

The People鈥檚 Republic turns 70 on October 1st. Mark Mardell tells the story of how much China has changed in those seven decades - politically, culturally and socially.

In episode four, he looks at how China is harnessing new technology to achieve a surveillance state unlike any other, and why the so-called Century of Humiliation fires sensitivities that will underpin the anniversary celebrations.

(Photo: Biometric Hardware firm displays security solutions
Credit: Getty Images)