Which brings me to a question, I've had all along on Air-Bag Systems.
None of it needs to be tested/re-certified/replaced at any point after manufacture or installation?
Fire Extinguishers have to be re-certified annually, and I seriously doubt one will "Explode" and send shrapnel at the user.
I only point this out because if you have never had one go off you need to see it first hand, especially when your sitting in front of it. It will give you pause, it's a controlled bomb between your hands on the steering wheel.