I currently have 2 Pits (both rescue) and a Rotti, in the past I have had Am Staffs as well as other breeds.
In all my years of having "bully breeds" I have never had one attack another human being. I did have a male Am Staff, that fought with a Malmute once but the Malmute started it.Thankfully I had a breakstick and was able to end it relatively quickly.
My Apbt's have never shown signs of DA, I have fostered lots of dogs and my Pits were more than willing to share their home and their "mom and dad".
Like someone posted earlier, many attacks claimed to be by Pitbulls, were not Pitbulls at all. Unfortunately, there aren't enough resources to do DNA testing on all dogs otherwise maybe the "stats" would be different.
I don't agree with breed bans, and as far as legislating that all Pits should be muzzled and such, why should my dogs be punished for the actions of a few?
I take great pride in knowing my Apbt's are good ambassadors for the breed.
Like that motto goes: "Punish the Deed not the Breed".