I think the point AJS is trying to make, is,,, The only way to find out if a dog is dangerous, is when it does something like has happened, so why put down, what could turn out to be a perfectly safe dog, just because the breed is considered dangerous?
It's often been said, there's no such thing as a bad dog,, but there are bad dog owners.
My late mother in law owned an American Pit Bull, dog from when it was a puppy, and I can honestly say, I've never met such a well trained and behaved dog as that one. My kids used to tease it something chronic whenever we were round her house and the dog behaved impeccably. Never once baring it's teeth or growling at them. FFS let's get a sense of proportion here.. As a responsible dog owner, I must agree with AJS, there's absolutely no need to tar all pit bulls with the same brush.
BTW, my dad had a Yorkshire Terrier, that I wouldn't let my children near,,, (vicious little bleeder, which would have yer bloody fingers off in an instant)