The Surveillance State goes big in an article from Gizmodo, which describes early testing of a "God's-eye" system that collates information from multiple sources on the ground, giving the authorities what inventor Ross McNutt describes as "a live version of Google Earth, only with TiVo capabilities."
What McNutt's system does grows more amazing, and perhaps more chilling, as you read more about how it works:
It's sort of similar to what your average satellite can do—except, in this case, you can rewind the video, zoom in, and follow specific people and cars as they move around the grid. It's not specific enough to ID people by face, but, when used in unison with stoplight cameras and other on-the-ground video sources, it can identify suspects as they leave the scene of a crime.
The PSS system has been tested in cities including Baltimore and Dayton, and, last year, police officers in Compton used it to track crimes, including a necklace snatching. In one case, they could track a criminal as he approached a woman, grabbed her jewelry, and then ran to a getaway car. They eventually drove out of frame, which meant they weren't caught—but, as the Compton police explain in this video, the system told them that this particular car was involved, at the very least.