RALEIGH -- These days, sirens such as Beyonce and J-Lo might pack a little too much back to win the Miss America pageant. Marilyn Monroe might be considered too curvy to appear as a Playboy centerfold today. A pair of researchers at Meredith College have the numbers to prove that America's ideal female body is a silhouette that has morphed from curvaceous to cigar-shaped in the past half-century. They've figured that out by using the height and weight of two sets of trademark red, white and blue beauties: Miss America winners and Playboy centerfolds. The study suggests that America's obsession...