You essentially have a human-relations database on millions of Americans. The administration said, "Well we're not listening to calls, we don't collect content. " As [Vice President] Joe Biden said when he was a United States senator, you don't need to listen to those calls. If you have who somebody called, when and where, and you learned, for example, somebody called a psychiatrist three times in the last few days and twice after midnight, you know a lot about that person that they may not want people to know about them, especially the government.
In my relativity theory I set up a clock at every point in space, but in reality I find it difficult to provide even one clock in my room.