Oprah Winfrey, the daytime television guru who encourages viewers daily by telling them they have the power to achieve any goal they might set for themselves, questioned Bristol Palin’s goal of abstaining from sex until marriage in a recent interview: “In a Jan. 22 interview, Oprah criticized Bristol Palin, the teen daughter of former Alaska governor Sarah Palin, for recently telling In Touch Weekly that she was pledging abstinence until marriage. ‘I kind of bristled,’ Oprah began, ‘when I saw this—where you said, ‘I’m not going to have sex until I’m married. I can guarantee it’ ... I’m just...