James McKenna, an anthropologist at the University of Notre Dame, lectures at a recent meeting of the American Anthropological Association. After nearly three decades studying how babies and mothers sleep together, McKenna says he doesn't advocate bed-sharing for all families, but strongly objects to efforts by public health officials to stigmatize or criminalize the practice. "It's ethically wrong ... to take the decision out of the hands of parents," he says. (SHNS photo by Lee Bowman.)