MY SON WAS STOPPED BEHIND ANOTHER STOPPED CAR ON A 2 LANE HIGHWAY, AS A CAR 2 IN FRONT OF HIM WAS PREPARING TO MAKE A LEFT TURN. THE PERSON TRAVELING BEHIND MY SON, WAS LOOKING INTO HIS REARVIEW MIRROR AT HIS CHILDREN IN THE BACK SEAT AND FAILED TO STOP. INSTEAD, AT FULL SPEED (45-55MPH) HE REARENDED MY SON IN THE FORD FOCUS THEREBY PUSHING HIM INTO THE CAR IN FRONT OF HIM. NO AIR BAG DEPLOYED, AND THE SEAT BELT FAILED TO LOCK CAUSING MY SON TO PLANT HIS FACE IN THE STEERING WHEEL.