 This is Fresh Air Weekend. I'm Tanya Mosley. In the days after September 11, 2001, Michelle Buteau made a life-changing move. She was working overnight as a TV news editor when she decided to take a leap and do stand-up comedy. For years, her co-workers had been telling her she was funny, but it would take one of the most tragic events in U.S. history to give her the courage to take the step into comedy.