The London style surveillance camera has inspired the US to install extensive closed-circuit television networks in the US to help track down would-be bombers.
To bring home the culprits, the London style is both a forensic tool and a deterrent. This technology alerts police and also zooms in on objects hundreds of feet away. With this gadget New York is planning to go London style.
But this London style monitoring system doesn't go down well with the opponents raising serious constitutional questions.
But cameras are a wise investment and a cost-effective equivalent of putting a police officer on every corner or at every subway stop that needs one.
However unlike the London style, American cities, don't have extensive live networks tied to a central surveillance centre.