Well it depends, the deal with the Firestone tires and Ford Explorers was that one of the rear tires was rubbing a suspension piece. In all the wisdom both companies mustered, they advised people to run the tire pressures really low, like 20 psi or something rediculous. At that pressure the tire was folding in on itself and causing way too much heat and then the tread would effectively come off the tire because the heat had pretty much cut the tire around the radius right at the tread line. There were some factory issues where the adhesive was bad which bonded the steel belt to the rubber of the tire, but that was solved pretty quickly.
Anyway, from what I've been told, once a tire blows in the rear, let off the accelerator and slow down gradually. The car isn't going to flip and explode or anything. The #1 cause of accidents from a tire blowing, is from people standing on the brakes to get stopped. If you apply gradual pressure and ease off the accelerator and come to a slow stop, then you'll be fine.
