Orin Kerr writes:
I’m guessing we all know that you don’t have a reasonable expectation of privacy in photographs that you post on the public Internet. Government investigators don’t violate privacy rights by looking at photos posted on the web for all to see. But what about the metadata embedded in those photographs? And what if it’s a website only accessible using the TOR browser?
In a case handed down last week, United States v. Post, a district court held that the Fourth Amendment still offers no protection.
Read more on WaPo Volokh Conspiracy.