Barack Obama related to Warren Buffett? No surprise there; the elite families are all connected by blood-lines...

Maybe now we know why President Barack Obama, leader of the free world, and Warren Buffett, "oracle of Omaha," get along so well.

They're related.

So says the research of Ancestry.com, the online genealogical enterprise that has gained a name for making long-lost connections.

Obama and Buffett are even closer than Obama and actor Brad Pitt, whom Ancestry.com pegged for ninth cousins a couple of years ago. More...

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