Oprah Winfrey broke her silence about James Frey's disputed memoir of addiction, "A Million Little Pieces," dismissing allegations of falsehoods as "much ado about nothing" and urging readers who have been inspired by the book to "Keep holding on." "What is relevant is that he was a drug addict … and stepped out of that history to be the man he is today and to take that message to save other people and allow them to save themselves," Winfrey said Wednesday night in a surprise phone call to CNN's Larry King, who was interviewing Frey on his live television program....