*On the other hand, the government using public funds to do this, combining the data with private information, and trying to keep the fact that they do this secret is wrong in my book.
The DMV records are not supposed to be available to anyone but the police. The ability to abuse that for crime is huge.
So it sounds like an illogical configuration on its face then.
...and no, I don't recognize a right to "privacy" that is so tentacular as to prohibit people from walking around with a camera, running some computer vision on it, and sharing the result with like-minded hobbyists doing the same thing.
Exactly. A lot of people seem to think they can have (and therefore expect) a world in which they can cover the eyes to make themselves invisible. Like little kids, they say "I have my hands on my eyes, you can't see me!". And when that fails for obvious reasons then, unlike kids, they want this magic to be enforced by law. "How dare you look at me? You're not allowed!".
I guess this has been tried before: http://www.zeit.de/datenschutz/malte-spitz-data-retention
Why should governments and corps have all the fun? (Insert sousveillance/transparent society/David Brin rant here).
Are there any decent open source number plate recognition libraries yet?
And now imagine a website called numberplateradar24.com that aggregates the feeds from 1000s of number plates scanners around the country. Which means you can track an individuals car.... does this sound like an invasion of privacy. Where's the dividing line? I think it's totally reasonable that private planes are allowed to encrypt their identities. As long as their position is still trackable it doesn't matter if the general public don't know everything.