Using automated scanners, law enforcement agencies across the country have amassed millions of digital records on the location and movement of every vehicle with a license plate. Affixed to police cars, bridges or buildings, the scanners capture images of passing or parked vehicles and note their location, uploading that information into police databases. "As the technology becomes cheaper and more ubiquitous, and federal grants focus on aiding local terrorist detection, even small police agencies are able to deploy more sophisticated surveillance systems. While the Supreme Court ruled in 2012 that a judge's approval is needed to track a car with GPS, networks of plate scanners allow police effectively to track a driver's location, sometimes several times every day, with few legal restrictions." Law enforcement officials said the scanners can be crucial to tracking suspicious cars, aiding drug busts and finding abducted children. The ACLU has quite a different stance. http://apnews.myway.com/article/20130717/DA7JAB480.html What do you think?