Cops have been testing a new wide-area surveillance system that can watch, record and rewind every outdoor activity that happens in a city, every person, every car and every crime. The system is like a “live version of Google Earth, only with TiVo capabilities,” creator of Ohio-based Persistent Surveillance Systems says. System was used by L.A. County Sheriff’s Department to track necklace-snatchers, thieves similar to purse-snatschers, except they were stealing necklaces. PSS high-resolution surveillance cameras were fitted to the belly of small plane.”]