Davis (2010) and Agar (2004) both use deafness as a case for clarification, as such a case calls attention to the contentious nature of these decisions. They both take hearing to be a core human capacity, or a trait that is necessary for a wide variety of life plans. Hence, they argue, engineering a child to be deaf will limit that child’s future options. This is not, of course, to say that deaf individuals cannot live rewarding lives in which they flourish. Indeed, Agar recognizes that in some