Saying that all pit bulls are vicious is quite a racist statement, it's like saying that all people from the middle east are terrorists. Dogs are individuals like people, some people are nice and others aren't the same goes for dogs and not just pit bulls but all dogs.
Responsible dog ownership is really the major factor pretty much all of the reports of dog attacks are directly related to irresponsible ownership. Just as Warchild had stated how he fenced his yard so that his aggressive dog doesn't get out to do harm to others. I know that Aaron said that the dogs that attacked his dog were constantly roaming the streets unleashed and alone. Which is clearly irresponsible for the safety of the dogs and others.
I had this guy for 14 years very friendly towards people but had dog on dog aggression, mostly to larger dogs and because of this he was always leashed when out in public.
We have 2 male pit bulls right now (brothers from the same litter) that have been well socialized from an early age and they are extremely friendly to other dogs. I have actually had several other dogs (border collies, labs, and those little poodles) snap at mine when out for a walk. My dogs reaction was basically shock as all he wanted to do was play. This is one of the main reasons that even though our dogs are friendly they are always leashed when in public, you just never know the disposition of other peoples dogs.
I am happy to hear that Aaron's dog is doing better I don't believe any dog should have to go through that sort of trauma. Breed specific legislation is not the key to preventing this sort of thing from happening though. People need to be educated and responsible when it comes to their dogs.