There's been plenty of speculation about what piece of infrastructure will host the "smart" functionality of the future, from old payphones to actual roads. But the simplest and cheapest solution—put it in the lights!—is already being implemented.
The New York Times reports that, in Newark, these multi-tasking LED fixtures are being installed by a company called Sensity Systems. Each fixture is networked to a wireless surveillance system that feeds real-time video input and sensor data to a central hub monitored by security. The idea? Make fliers safer and operating costs cheaper, by killing two birds with one system."