Well, England banned PBs over ten years ago and really it has made things ten times worse! Making the law dog breed specific has meant that the police now have virtually NO powers to pick up obviously dangerous but non PB dogs. The law is currently being amended, hopefully the breed will come off the law and it will merely be the responsibility of the owner of any dog of any breed, to keep it under control. There is nowhere in the country where you are allowed to let any dog run free without supervision, and there is nowhere in the country where you are allowed to walk dogs off lead on walkways beside roads- nor are you allowed to let the dog foul the path- yet, of course, there are people- many, many people, who think they are just above the law, Then there are those flaming extending leads- now I use then in winter when I have to walk half a mile to my horses (as opposed to driving it) and off road, on a field or footpath they are useful, especially for small, untrained dogs. BUT there is absolutely NO way anyone walking a bull breed dog of any type, on an extending lead, would be able to control it if it was out on the end of the lead, it could run under a car or eat someones Yorkie- no way to stop it at all- my Dobes all have foal halters on, not only can I control them fairly easily bit I can do the nose buckle on the dog's halter up a little tighter and he is then not able to get his mouth open wide enough to eat someones fluffy thing (He was six when he came to me and totally unsocialised- not even house trained, a real junkyard dog! He has done very well and is never aggressive to my little fluffy dog, but.......)
So, I don't know what to suggest, Banning the breed will not work, you need to take action against the deed not the breed- these sort of attacks need to be taken seriously no matter what breed- a pack of Jack Russell's killed and ate their owner in California some years back!!- and the owners need to be made financially responsible for their pets.
I know how Americans react when legislation is suggested but, honestly, the time has come for ALL dogs to be microchipped, like cars have log books, and the name of the person on the microchip is the person responsible under law- so if you have not updated the microchip when the dog was sold you ave a HUGE problem.
Hit them, all bad dog owners, in the wallet, that is the only thing that will, long term, really work,