Take Note: St. Patrick's Day with Ireland's "Happy Man" Cahal Dunne

Nearly 35 million Americans claim Irish ancestry. That's seven times more people than currently live in Ireland! No wonder Saint Patrick's Day has evolved to celebrate all things Irish! We'll talk with Cahal Dunne, the Cork-born singer/songwriter, and now, self-published author. He's been sharing his musical heritage with American audiences since immigrating here in 1983.