The July/August cover story of the Atlantic about women's choice of family and career coincided with the July announcement that Marissa Mayer is the new president and CEO of Yahoo!. All hell broke loose when more details of Mayer's professional and personal life became known. Not only is Mayer young, (at 37, she is the youngest CEO of a Fortune 500 company) and female (and only 4% of Fortune 500 CEOs are women), but she is also pregnant.