This case brings up the issue of attaching a GPS to a car surreptitiously without a warrent and using it for continuous tracking. Near the end it brings up th

This case brings up the issue of attaching a GPS to a car surreptitiously without a warrent and using it for continuous tracking. Near the end it brings up the theory of "practical obscurity", which distinguishes between public records where one might have to dig into court records all over the place vs. getting the same data from a central clearing house. Apparently the FBI has refused to release aggregated public records on this doctrine in the interest of privacy. Practical Obscurity is an interesting theory. My non-lawyerly guess is that if it is upheld by the Supremes, it would be used in all kinds of attacks against search engines.