The ridiculous statement attributed to a dog behavior expert in Monday's article about pit bulls needs a reply. ("It's not just the breed and temperament, but the overall health, supervision, training and things like that," which can make animals dangerous.)
Dogs have been bred for thousands of years to have specific characteristics, and they are very good at it. You can take a young pointer out in the woods, and he will try to point birds with no prior training. So will a sheep dog attempt to herd sheep.
Bulldogs and other aggressive breeds have been bred for defense and aggression, and they will revert to this behavior when there is an appropriate stimulation. I learned this at an early age when my 2-year-old niece approached a Doberman pinscher who was eating. He bit her in the face.
Wake up, dog lovers. Don't use aggressive breeds for other purposes.