TIRE BLEW-WE SPUN OUT, HIT A SEMI, TOTALED VAN..INSURANCE CO INSPECTOR SAID TIRE WAS DEFECTIVE-TREAD TOTALLY CAME OFF-JUST HAD TIRES SERVICED IN JULY 2001. NEITHER AIRBAG DEPLOYED AND WE HIT SEMI IN FRONT-CUT ENGINE IN HALF . WHEN BOUGHT CAR, DEALER SAID IT HAD BEEN IN NO PREVIOUS ACCIDENTS, BUT WE'RE LATER TOLD WHEN WE FOUND GLASS IN THE BACK, THAT THE REAR BUMPER/PANEL HAD BEEN PREVIOUSLY REPLACED. WONDERING NOW IF AIRBAGS WERE NOT RECHARGED FROM A PREVIOUS ACCIDENT. ACCIDENT OCCURED 6 HRS OUTSIDE SAN ANTONIO (VAN HORN, TX) AND VAN IS NOW IN EL PASO, TX.*AK