Judges in several states may soon get a new tool to stop dangerous drivers from speeding again. A device called intelligent speed assistance prevents a car from accelerating far past the speed limit. Virginia this year became the first state to approve such a tool for reckless drivers. Similar measures are awaiting governors' signatures in Washington and Georgia. The Washington legislation was inspired by a Seattle crash in which a teenager traveling 112 mph killed a woman and three children when he slammed into their minivan. He was sentenced to more than 17 years in prison. When he gets out on probation, he will have to install the device.