We've heard a lot about President Obama's ethnic background since the 2008 election: his father from Kenya, his childhood in Hawaii and Indonesia. Few of us remember that the President's mother's family came to the U.S. from Ireland. But the tiny village of Moneygall, Ireland hasn't forgotten. Today they're getting ready to celebrate the president as he visits his ancestral hometown for the first time. Barry Williams is a Moneygall resident - he says that many presidents have come through Ireland looking for ancestral roots. Joining us live from Moneygall is Ruth McDonald, reporter for our partner the BBC.

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