Originally posted by Dante
For once I agree with PETA.
This might be an educating read for you.

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The American Pit Bull Terrier and its AKC cousins had a well- deserved reputation as a loyal and trustworthy family pet in the early years of this century, but of late has been severely castigated as a vicious, man-killing beast, worthy of banishment from the cities, considered guilty with no chance of proving innocence in any case.

"Pit bull" is a generic and derogatory term that encompasses any of several breeds of dogs or crosses on those breeds. Pit Bull fanciers can be divided into several camps: conscientious breeders of the AKC-registered duo who often deny kinship of their dogs with the APBT; ethical breeders of the APBT who face squarely the slander heaped upon them by ignorant neighbors; and unethical breeders of all three breeds who still indulge in dog fighting or promote aggressive temperaments for illegal purposes. Dog fighting rings still exist--it's only been a few years since a ring with national ties was busted in New Richmond and Blanchester, Ohio--and inner city drug dealers often use the dogs to guard their drug supplies and cash.

To further complicate matters, those who still breed for fighting are not as careful to preserve the dog's strong instinct to bond with humans as the early breeders did. So, today "pit bull" is a pejorative term that strikes fear in the hearts of many and leads to the spreading of urban legends about dogs with locking jaws that exert 20 thousand pounds of pressure, unstable breed temperament, and overwhelming human aggression.

In fact, the well-bred American Pit Bull Terrier is a family guardian and protector; an intelligent and obedient pet; a sweet, even-tempered dog that serves well as a help-mate to handicapped owner and friend to small children; and a healthy, hardy dog that complains little and offers much to his family.

Unfortunately, it has been more important for legislators in many jurisdictions to prove to constituents that they have "done something" about community problems. Spurred on by media accounts of "pit bull" attacks described in lurid detail, these councils and commissioners have banned pit bulls in all their forms from their communities. Never mind that the owners are the ones at fault for harboring a vicious dog; never mind that few of these dogs actually bite people; never mind that the breed and its crosses are not always easy to identify. Just ban them.

So, many shelters do not offer pit bulls or any dog that might be part pit bull to be adopted. Insurance companies cancel house insurance if a pit bull is in residence. Neighbors mistake everything from Boxers to Pugs as "pit bulls". And those criminals who used pit bulls as protectors of their illegal activities switch to Akitas or Rottweilers.

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From this site: http://www.canismajor.com/dog/amerpit.html

But you can find thousands more sites that will state exactly the same thing in varying words.