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Now Playing: 04-13-12 Marketplace Tech Report

So we know that Facebook gathers our personal information. It knows our friends, our significant others, the music we like, where we work. It’s enough to raise a lot of privacy concerns for a lot of people. But the social media site is trying to calm some of those worries. Facebook has just announced it'll roll out a feature that will let users check out more of the information it has gathered. Still, that’s still only a fraction of the information Facebook has.