Wow !! Sorry to hear about your tires, we have had the same problems over the years, and thought about changing over to Light Truck tires. We will do that at the end of the season, barring any problems before then. You are very lucky after the last tire blowout on our TT did $ 400.00 worth of body damage to it. So far the 5'er is faring much better, but not going to chance it. As far as the Govt. not doing anything, in our opinion that's normal, until some big wigs trailer is damaged and we know that is not going to happen, cause they don't camp !! Good luck and Happy Travel !!