A very extensive visualization of various U.S government data mining programs :"Individually, each piece of information gives only a small glimpse into people’s lives -- but over time, these bits of personal information can begin to reveal patterns. Such as the places they go, the products they buy, or perhaps the type of people they associate with.This pattern-recognition process is called “Data Mining” or sometimes “Knowledge Discovery.” Since September 11, the federal government -- especially intelligence and law enforcement agencies -- have turned to data mining programs to make sense of growing oceans of data. The end result isn’t always about discovering what people have done -- but what people might do tomorrow. What does a terrorist look like? What is the culmination of their credit, contacts, purchases and travel? Is it possible that you might share these similar patterns? Chances are at least some of these programs sift through personal information about you."
Go through the questionnaire for a specific case, directly on a program of interest and see its relationship with the rest, if any of course. Go through a previous post on Able Danger's Intelligence Unit Findings Rejected to find out more about the state of information sharing.
