Deborah Lynn Steinberg is a reader in the department of sociology at the University of Warwick and the author of "Bodies in Glass: Genetics, Eugenics, Embryo Ethics" and "Mourning Diana," Richard Johnson is a professor of cultural studies at Nottingham Trent University. He is the coauthor of "Schooling Sexualities" and coeditor of "Border Patrols: Policing the Boundaries of Heterosexuality,"