Тhe ShotSpotter sniper detectors are rolling out across America. The cutting edge technology is so precise it can identify the location of a shooter within 10 to 15 feet. Sniper detectors can also differentiate between calibers, types of firearms, car backfires, fireworks, and bombs by hearing an "acoustic signature." Using wide area surveillance and GPS from sensors placed on buildings in specific locations, detectors relay information almost immediately to police computers, aiding immensely in response time. A sign posted outside an elementary school reads, "If You Fire a Gun, We Will Find You".