I WAS TAVELING ON THE INTERSTATE AT APPROXIMATELY AT 60 MPH WHEN I CAME UPON A PICK-UP TRUCK THAT WAS TRAVELING AT APPROXIMATELY 20 MPH AND RAMMED INTO THE BACK END. THE FORD DEALERSHIP THAT I BOUGHT THE TRUCK FROM WAS TO DO THE REPAIR WORK. THEIR BODY SHOP WAS TO GET WITH FORD TO FIND OUT WHY THE AIRBAG DID NOT DEPLOY. THE REASON THEY TOLD ME WAS THAT THE OTHER VEHICLE WAS MOVING SLIGHTLY AND THAT FORD'S AIRBAGS WAS NOT DESIGNED TO GO OFF IN THOSE SITUATIONS. THIS TO ME IS A FEEBLE ANSWER.