I guess just because we have the ability to do something, doesn't necessarily mean we should do it. As the science of genetics becomes more advanced, I have no doubt we will be able to alter genes. My concern is where do you draw the line? And I personally believe that altering genetic make up will lead to unknown possibilities - creating new gene mutations that have unpredictable outcomes. My younger sister is mentally disabled - there was a time when she would have been institutionalized for this. She will never have capabilities beyond a first grade level, but she is a reminder to enjoy the simple things in life. She is always ready to laugh and absolutely loves children. The world is a better place because she is here! I have suffered severe depression as well as other MH issues my entire life - if nothing else, it has taught me compassion, empathy, and strength.