TONNEAU COVER FLEW OFF BACK OF TRUCK ON BUSY HIGHWAY. CAR COMING BEHIND TRUCK HIT IT, ROLLED AND DID SIGNIFICANT DAMAGE TO THEIR VEHICLE. ALL FOUR CLIPS WERE ON TONNEAU COVER, SO IF ONE CLIP CAME OFF, THE OTHER THREE SHOULD HAVE HELD COVER IN PLACE. SHORTLY AFTER THIS ACCIDENT, I WAS TOLD BY TWO OTHER INDIVIDUALS THAT THE SAME ISSUE HAPPENED WITH THEIR TONNEAU COVER, HOWEVER, NO ACCIDENT OCCURRED. I WAS ALSO TOLD BY ANOTHER INDIVIDUAL THAT THE TRUCK LINER FLEW FROM THE BACK OF THE TRUCK. THERE SHOULD BE SOME TIME OF SAFETY HARNESSES ON THESE TRUCK PARTS. THE BRACKETS THAT WERE USED TO HOLD DOWN THE TONNEAU COVER ON THE NISSAN TITAN WERE NOT USER FRIENDLY, NOR VERY ACCURATE FOR THE DANGERS THAT COULD OCCUR FROM THE COVER FLYING OFF THE VEHICLE. *TR