The problem with the cameras is that it takes something
like the London bombing or shootings or kidnappings on the street to make them worthwhile. These things don't happen much ANYWHERE. Too much time with nothing to show for it, and they'll be using the cameras for the most inconsequential of "pseudo-crimes" thereby making the tiny crimes seem like big ones.We already know from the Nanny case in Florida how fallible any camera of this kind is; I hate to think of these things being used as devices for "positive identification".
They may not be positive ID, but on the other hand, they are a whole lot more reliable that eyewitness testimony. As the technology improves, I think we can expect better quality images. I don't mind them using these cameras to prosecute lesser crimes than 911. Although I do disagree with the idea of using them to catch speeders, and there was that reported case last week where they ticketed some woman that they caught on camera putting her makeup on while driving.
Even that can be argued, though, I guess.