Any time someone tries to tell you that metadata is 'meaningless, don't worry, it's just who you call, it's just phone records, it's not a big deal' - realize we kill people based on metadata. So they must be pretty darn certain that they think they know something based on metadata.
My grandfather was a man, when he talked about freedom, his attitude was really interesting. His view was that you had obligations or you had responsibilities, and when you fulfilled those obligations or responsibilities, that then gave you the liberty to do other things.