Why do people fear PITBULLS?

ive raised my pitbulls around my kids and they are the best family dogs,it is humans that train and force this breed to fight each other..visit these links so you can see proof that the ABPT is the best breed http://www.youtube.com/watch?v=U7Z5oZhqA7g http://www.jinxmagazine.com/jd_stubby.html this link shows the truth of what humans do these animals http://www.clicpitbulls.com/greatdogs.htm