A year from now you may decide to commit a terrorist attack, the phone data today could be vital to that investigation. The government doesn't know who is or isn't a potential terrorist. All must be suspect.
When I read this, I laughed, because it's basically lunacy, but then I also realized, this is the type of breed of person our government wants. They want an individual who is so scared, they are willing to trade in freedom, for protection. Thing is, that they really don't offer up much protection, especially if all they claim to do is "mine" the data.
I mean, how much safer are we knowing their are N amount of people out there texting and google searching about explosives? I bet looking back through the bostom bombers data, they found all sorts of crap that any reasonable person would believe they were planning an attack. But can we do anything about it ahead of time? No.. Not with in our law. You can go around arresting people because, "we think you are going to comitt a crime".
Once we do that, we will truly have a police state...And we are a lot closer to that than we think.