On Mon, 23 Apr 2012, Yoav Nir wrote: > Again, this is a different level of information. On the streets, Legally > I don't have an expectation of privacy. The police, or anyone who cares > to, may follow me around, and see where I'm going. There is, however, a > huge const involved in this, and that's why 20 years ago, people did > have an expectation of privacy on the streets. Having surveillance > cameras at street corners like they have in too much of the western > world right now does not change what the police can or cannot do to an > individual. There is a huge change, though, because now they can afford > to track everyone all the time. > > Connect those cameras to the Internet as publicly accessible webcams, > and our society turns into a whole new kind of surveillance society. > Publishing blue sheets is not as bad as that, but it's a step in the > wrong direction. +1 The ease today with which nominally public information can be aggragated is very concerning. Not only does the publication of blue sheet (or RFID based location information) make it easy to determine where someone was, it also makes it possible to determine where they weren't.