New York, N.Y. – In her new memoir, NOW IT'S MY TURN(Simon & Schuster/Threshold Editions, 2006), Mary Cheney writes that when she told her parents she was gay, the first words out of her father’s mouth “were exactly the ones that I wanted to hear: ‘You’re my daughter, and I love you, and I just want you to be happy.’” VANITY FAIR editor Todd Purdum reports that Mary Cheney tells her story in a voice very much like her father’s, and that she came out to her parents when she was a junior in high school, on a day when,...