This is a great graphic from an article I just read that deals with the big data intel grab, down to usable intel. Think NSA, it just grabs everything that is on the internet or voice. Then it takes its time to filter it down, the nice thing is, is that it is all there if needed at anytime. I am told that there are some items in the NSA funnel stack that go back past the Vietnam war. Still not listened to or decoded.