Trawling through Google’s search history database enables police to identify people merely based on what they might have been thinking about, for whatever reason, at some point in the past. This is a virtual dragnet through the public’s interests, beliefs, opinions, values and friendships, akin to mind reading powered by the Google time machine. This never-before-possible technique threatens First Amendment interests and will inevitably sweep up innocent people, especially if the keyword terms are not unique and the time frame not precise. To make matters worse, police are currently doing this in secret, which insulates the practice from public debate and regulation.
Surveillance and cybersecurity counsel at the American Civil Liberties Union (ACLU).
Exclusive: Government Secretly Orders Google To Identify Anyone Who Has Searched A Name, Address And Telephone Number
[As I have mentioned before I’ve been impressed with Granick on Internet freedom issues.