Maryland is continuing its march towards wholesale surveillance of its citizens on the roads by announcing plans to use license plate recognition systems to scan and identify the plates of any vehicle a specially-equipped car happens to drive past.
Marc Rotenberg comments on the privacy implications of such a plan in the article, and I’ve blogged about similar concerns often (see links below).
One concern not noted in the article is whether the police department is keeping a database of the time and place particular plates are scanned, rather than just scanning and checking for matches in a database, then deleting the record.