Today's Big Brother: "Automatic License Plate Readers track your every move":

ALPRs are not ordinary cameras. Attached to police cruisers, or fixed on telephone poles or other stationary places, the cameras snap an image of nearly every license plate they encounter. The device produces a file for each image captured, which includes searchable text displaying the time, date and GPS location of the car when and where the plate was 'read'. This information is fed into a database, where it can be shared with other agencies and databases, and "mined" or analyzed.

One of the major problems with ALPR technology is that it sucks up all license plates, not simply those associated with people suspected of wrongdoing. Therefore as the technology expands, it is possible that law enforcement will be able to track your movements with incredible precision as you go about your daily life in your car. Without proper privacy protections backed by the force of law, ALPRs become yet another tracking technology...