Ok you two, I have no disagreement with you two that pit bulls can be horribly vicious dogs. They're strong, they bite really f'ing hard, are sometimes raised by criminals for dog fighting, and they get loose on occasion. During the course of my job, I've been around the worst ones a number of times. They're terrifying. A local writer came up with this a few years ago, in a review of a Japanese restaurant: "their wasabi clears your sinuses faster than a pitbull clears a playground."
The reputation is there and, well, sometimes deserved (taking into account the multitude of fighting dogs).
All that said, no responsible parent leaves their dog unattended around any infant/small child.
But, I see no reasonable evidence that a properly raised, trained and cared for (this is key) pitbull isn't as great a dog as any other breed. Do you?