These attacks are so random, so there's no safe environment anywhere for anyone - it's not like they are in specified areas that you can avoid, so potentially everyone is at risk. And that is just not acceptable. The government have got to act - though how they will manage when it's not a recognised breed goodness only knows.
Personally I don't accept the argument that 'it's-not-the-dog-it's-the-owner'. However responsible the owner might be, these are extremely powerful dogs, and if they are 'spooked' or feel threatened, or just respond to an instinct to chase someone running around (like a small child), there's little that anyone can do to contain them.
The fact they appear to be the dog-of-choice for drug dealers and their ilk tells much about their particular 'characteristics'.
I'm sick of hearing about children mauled to death by out-of-control dogs, not to mention innocent adults. I know it's still a rare occurrence, but one death is too many.
I hope the government doesn't faff around the edges of legislation which ends up being ineffective.
I'd like to see the owner of that dog in Birmingham put behind bars for a good few years - it might concentrate his / her mind prior to acquiring another one.