This is a very interesting discussion. I studied eugenics in history at length and yes, it was practiced in many countries to varying degrees. To fan the flame of this discussion let me pose a question to both of you, Muman and Bill. First, Muman, do you think parents should do prenatal testing, such as seeing if one or both of the parents have a genetic predisposition for cystic fybrosis or muscular dystrophy or down's syndrome, and deciding whether or not to have children based on the results of such tests? And Bill, you seem to feel that a person's genes write out their future for them. Do you think carriers of "violent genes" are necessarily going to commit crimes? And who would you suggest should be able to make the decisions concerning who is fit to reproduce?