MY JEEP WAS HIT BY ANOTHER CAR TRAVELING ABOUT 40 MPH IN A T-BONE MANNER CAUSING MY VEHICLE TO SPIN AROUND AND BEGIN BARREL ROLL TWO REVOLUTIONS BEFORE NOSE-OVER LANDING ON THE ROOF. THE COLLISION RESULTED IN BOTH VEHICLES BEING TOTALLY DESTROYED. NO FATALITIES BUT SERIOUS INJURIES WERE SUSTAINED BY ME. I AM A FORMER TRAFFIC COP AND HAVE WORK MANY, MANY TRAFFIC CRASHES WITH ALL TYPES OF VEHICLES WITH ALL TYPES OF INJURIES / FATALITIES REPORTING SO I FEEL QUALIFIED TO SAY I AM SURPRISED THAT THE AIR BAGS ON MY JEEP NEVER DEPLOYED.