[Eldarrion]

The privacy issue isn't about you being identified as someone who has an outstanding fine to pay. The privacy issue is that the readers are collecting and storing data about EVERY vehicle on the road. That data is then used not only by the police, but also by a third party private company that can do with it as they will. As the article clearly states it is entirely possible to extrapolate where a person goes to the dentist/doctor/work/sleep/etc from this data. And, to top it all off, the private company that receives the data reserves the right to keep the data for as long as it is 'commercially viable' to do so... i.e. as long as there's someone else out there willing to pay them for it.

I'd call that a pretty major issue.