By Jay Stanley, Senior Policy Analyst, ACLU Speech, Privacy, Technology ProjectAugust 24, 2016 | 11:30 AM

Bloomberg Businessweek reported late Tuesday that the Baltimore police have been subjecting that city to a vast and powerful aerial surveillance system since January, without telling, let alone asking, the public that they serve. This is a big deal.

This system, known as "wide-area surveillance" and run by an Ohio company called Persistent Surveillance Systems, involves the deployment of megapixel cameras on a Cessna aircraft, which circles over a city for up to 10 hours at a time, continuously photographing a 30-square-mile area and giving police the ability to retroactively track any vehicle or pedestrian within that area. It is the ultimate Big Brother "eye in the sky."

Read the full post at the national ACLU's "Free Future" blog.