When you are stuck in traffic, brake lights on the car in front of you only tell half of the story. How often have you accelerated to catch up with the car in front of you only to have to slam on brakes because the car in front of you was not accelerating but getting ready to brake. whew! close call. Well, if you are paying attention, there shouldn't need to be a reason for close calls. This simple innovation of just adding a "green" colored light on the back of cars to...