Trachman writes: This is a fascinating article about hit and run suspect arrested after her own car reported the crash to authorities. The crash system activates when sensors on the car detect a sudden change of speed or movement. An emergency call is automatically placed to local first responders who can pinpoint the precise location of the incident using information supplied by the vehicle's GPS unit. An audio recording released by the authorities reveals how Bernstein tried to convince the dispatcher that there was no cause for concern. When the dispatcher asks what'd happened, Bernstein responds, "Ma'am, there's no problem. Everything was fine." Suspecting there was more to the situation than Bernstein was letting on, the dispatcher responds: "OK, but your car called in saying you'd been involved in an accident. It doesn't do that for no reason. Did you leave the scene of an accident?"