FRONT PASSENGER SEAT BACK BROKE DURING A REAR END COLLISION SEAT BELTS DID NOT DEPLOY WHEN THE CAR IMPACTED A VEHICLE IN FRONT OF IT DRIVER SEAT BELT DID NOT PROTECT DRIVER FROM HITTING THE TOP OF THE CAR WITH HIS HEAD, AND ALSO CAUSED A BRUISE ON THE LEFT ARM WHICH CONTACTED THE UPPER SEAT BELT BRACKET. *NM