How Your Movements Are Being Tracked, Probably Without Your Knowledge | Alternet:
Automated license plate readers, or ALPRs: "Big cities, like Washington, DC and New York, are riddled with ALPRs. According to the Partnership for Civil Justice Fund, ALPRs have become so pervasive in America that they constitute a "covert national surveillance grid." The civil liberties group has mapped the spread of ALPRs, and contends on its Web site that, "Silently, but constantly, the government is now watching, recording your everyday travels and storing years of your activities in massive data warehouses that can be quickly 'mined' to find out when and where you have been, whom you’ve visited, meetings you’ve attended, and activities you’ve taken part in."
And small cities, such as Tiburon, CA, are also acquiring this technology. The idea is to surreptitiously keep track of every car that passes. What is being done with all this information?