Mark twain wrote that if you took in a starving dog, fed it and made it prosperous it wouldn’t bite you, and this was the difference between a dog and a man. It seems Pit bulls are an exception to that rule.
Yes. They are.
This breed cannot help it. They were bred to do just this.
If you wish more information on the subject, or references backing up this statement, please either read posts with “pit bull” as a keyword or ask for the web link list. I will be happy to repost it in its entirety.