Apparently, you like to ignore the facts. I just gave you a link to SEVERAL people, all of which I would consider experts. Here are some more for you:
Dr. Howard Evans -Canine Anatomy (http://www.news.cornell.edu/stories/Nov06/Evans.profile.jg.html )
Dr. Sandy DeLahunta- Canine Neurologist (http://www.vet.cornell.edu/news/articles/08DeLahunta.htm )
Dr. Katherine Houpt- Dog Behaviorist (http://www.vet.cornell.edu/faculty/houpt/ )
Dr. Brady Barr (measured bite pressure for several types of dogs, which can be seen on the National Geographic website)
Dr. Ian Dunbar, Veterinarian and animal behaviorist (http://www.siriuspup.com/about_founder.html )
Dr. Karen Overall, who has too many degrees to name (http://abrionline.org/expert.php?id=21)
Nathan Winograd, graduate of Stanford Law School, author, and speaker dealing with animal welfare (http://www.nathanwinograd.com/?page_id=179 )
That sure took long enough. Let’s start with the first one, Howard Evans. When did this expert claim “that the number of fatalities in America isn’t disproportional to that breed?”