In an exclusive interview after the White House Correspondents' Dinner, Wolf addresses the backlash to her set. "I wouldn't change a single word. I'm very happy with what I said, and I'm glad I stuck to my guns." Also, CBS News contributor Alex Wagner talks about her search for the roots of her mixed-race ancestry. She used her reporting skills to investigate, digging through archives and getting multiple and conflicting genetic tests. Her book is 'Futureface.'