Big Data: NSA Isn't The Only One Collecting All Your Personal Information

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Big Data: NSA Isn't The Only One Collecting All Your Personal Information

The NSA's been getting a lot of headlines for its collection of American's data, and for good reason. But what it's doing is not that different from what a lot of private companies already do -- only they're not trying to figure if you're a terrorist so much as when's a good time to send you ads for diapers. 

It's often referred to as Big Data, and it's the increasingly sophisticated tools we use to track and make sense of massive amounts of information.