Well, that's the problem with having friends. Whenever you let someone get near to you, they could be carrying a hidden microphone and a video camera. And, even

Well, that's the problem with having friends. Whenever you let someone get near to you, they could be carrying a hidden microphone and a video camera. And, even if you explicitly tell them that you don't want to be friends with them any more, they'll still remember everything you've told them. The same issue crops up with email, letters ... hell, every way we've communicated for hundreds or thousands of years: there is no way to revoke access to information once granted, even if access to new information is withheld. You might as well complain that someone could take screenshots of everything you say that shows up in their news feed.