IN HEAD-ON COLLISION WITH BOTH CARS AT 30 MPH, BOTH FRONT AIR BAGS DEPLOYED. PASSENGER SIDE AIR BAG BURST THROUGH THE WINDSHIELD AND ENDED UP ON THE HOOD. PASSENGER NEVER TOUCHED THE AIR BAG, BUT WAS RESTRAINED BY THE SEAT/SHOULDER BELT. NO OTHER KNOWN REASON FOR WINDSHIELD DAMAGE BEFORE OR DURING THE CRASH. *AK