First, policy will need to focus on governing the uses of technology rather than preventing its development in the first place. This is because of the conceptual flexibility of the boundary between enhancement and treatment. Almost all potential enhancement interventions will be developed first as interventions to treat or prevent human health problems, pursuing goals that will easily offset their potential unethical applications. Beyond that, even to assess the potential harms of enhancement applications of approved medical interventions will require research, even if it also helps pave the way for their use. This means that interventions capable of being used for enhancements will be inevitably invented and perfected as by-products of biomedical scientific progress, and their social control will have to focus on governing their dangerous, unjust or vicious uses (Mehlman 1999).