Millions of American women are now running, swimming, and climbing for breast cancer, raising extraordinary sums of money for charities whose workings they know almost nothing about. This odd throwback to the earliest breast cancer fundraising campaigns of the 1930s may go unnoticed because the outward appearances are so radically changed. But although spandex and sweatbands have replaced white gloves and hats, and biking has replaced baking, women are once again donating their time, energy, and money, no questions asked.