All about how you raise them. The news media loves to doctor up their articles. Remember that Domermans, sheppards and rots also are terrible horrible, attack you on site dogs, according to news articles from the 70s, 80s and 90s.
Also have to remember, if it "looks" like a pitbull, its labeled as a pitbull LOL.
Pete * Muley* has a pure bread pitbull and that dog is friendlier than the owner! LOL.