In less than a decade and with little opposition, Chicago has linked thousands of cameras - on street poles and skyscrapers, aboard buses and in train tunnels - in a network covering most of the city. Officials can watch video live at a sprawling emergency command center, police stations and even some squad cars.
"I don't think there is another city in the U.S. that has as an extensive and integrated camera network as Chicago has," said Michael Chertoff, the former Homeland Security secretary."
Do you consider this an invasion of privacy?
