have assault rifles equipped with GPS tracking devices.

To have high capacity assault rifles equipped with GPS tracking devices. It would be cheap to use with current technology being that a cheap cell phone has the 911 emergency technology. If the device sensed a shock great enough to be causes by being fired, the location would be given and police could respond. That way if say an intruder was shot in a gun owners home, it would offer the gun owner more protection by immediate 911 response. Public gathering places like movie theaters, schools, colleges, malls, etc. could install a sort of device similar to that used to prevent shoplifting. Instead of watching for an object leaving a said space like merchandise, it would instead look for a device registered to a gun entering say a 500 foot radius of the place.