OK... I did NOT read what everyone wrote before... but I have something to say... NOW:
1. Pit Bulls were never BRED to be killers. They were bred to be extremely loyal to their owners. They were originally bred as protectors and friends. And it was only when the wrong people decided to use them for bull baiting (a cruel sport that is now outlawed everywhere) that they got the name of Pit Bulls.
2. Did you know that Pit Bulls were the most sought after breed up until the 1990's? Now... tell me the truth: was that because the dog was a vicious killer? or because it was a good, loyal, loving dog?
3. I have owned quite a few Pit Bull mixes, and have been around and cared for several pure blood Pit Bulls. Several came from "not so good" homes and backgrounds, and yet, they were still loving dogs.
4. Guess what the most dangerous dog out there is? Dachshund. NOT Pit Bull, Rottweiler, Akita, or one of those dogs. But a Dachshund. Just because a dachshund, chihuahua, or jack russel doesn't have the same bite strength as a pit bull, doesn't mean it's less vicious, or less dangerous.
5. The problem has NEVER been with the dog, but with the owner. Labradors and Golden Retrievers have been known to be VICIOUS and VERY dangerous dogs, in the wrong hands. Oftentimes, people see something that LOOKS dangerous, or something that has had a bad rep in the press due to incompetent training or ownership, and then everyone freaks out, and begins screaming.
6. I watched a show called "Man-Eaters", and it was talking about dogs and dog attacks in this particular episode. When it was talking about attacks... it WASN'T the PITS that were attacking (but labradors, german shepherds, even border collies). In fact, in one of the cases, a Pit Bull had actually saved this kid's life by taking the brunt of the other dogs' attacks, and through that, allowing the kid to escape.
7. Many people blame the dog for complete incompetence. Over half of the attacks (in kind, decent homes) were due to lack of training and control (they let the dog do whatever), and not teaching the kids to stay away from the dog's food or toys. A lot of times, a dog has a specific toy that it likes best, and so it will protect it, just like it would a specific owner. And so, the kid, selfishly, decides that it wants the toy, so it goes over and tries to take it. And then, when the dog snaps at the kid (perhaps getting a bit too close and taking off a bit of skin), the kid screams, so everybody assumes that the dog "attacked" the kid. When in actuality, the kid was the one "attacking" the dog.
I'm not saying that some dogs weren't bred more aggressively, and that you should just pick up any old pit bull mutt off the street, and expect it to be a good housepet. I'm also not saying that dogs need absolutely no handling or training. In fact, quite the opposite. It's never the dog's fault. But the handler's.
Think about it... when your horse acts up, or does something that can't be explained... who do you blaim? Not the horse. You blaim yourself. Yet... when a dog attacks without a "decent" explanation, and the only explanations would be either you're at fault, or the dog is a vicious killer... people always choose the latter.