MY SON WAS INVOLVED IN A HEAD-ON CRASH RESULTING IN BOTH VEHICLES BEING TOTALED. THE DRIVER OF THE OTHER VEHICLE RECEIVED MINOR INJURIES FROM HIS AIR BAG. MY SON HOWEVER PUNCHED HIS HEAD THROUGH THE WINDSHIELD RESULTING IN SIGNIFICANT INJURY TO HIS HEAD AND FACE. BOTH AIRBAGS DEPLOYED, AND HE WAS WEARING HIS SEAT BELT. IT IS MY BELIEF THAT THE SEAT BELT DID NOT LOCK CORRECTLY UPON IMPACT