The media has extensively covered China's widespread usage of cameras and facial recognition technologies. Now, these are the world's most-surveilled cities.
It might surprise you to learn that the worldwide urban population did not surpass the rural population until 2007. With roughly 3.3 billion each, the two groups were roughly split in half at that time.
Over 55% of people now reside in urban areas, and by 2050, that number is predicted to rise to 68%. Many of the biggest cities i...