yapplejax writes "New York City is seeking funding for a multi-million dollar surveillance system modeled on the one used in London. Police in the city already make use of the network of cameras in airports, banks, department stores and corporate offices — an arrangement used in cities across the country. This new project would augment that network with a city-wide grid. 'The system has four components: license plate readers, surveillance cameras, a coordination center, and roadblocks that can swing into action when needed. The primary purpose of the system is deterrence, and then an investigative tool.' But is it necessary? Steven Swain from the London Metropolitan Police states 'I don't know of a single incident where CCTV has actually been used to spot, apprehend or detain offenders in the act.'"