"Designer Babies"

Designer Babies make it seem that the babies developed were only to save a siblings life. For that reason I believe that it isn't right to do what we are doing. It sounds as if we are tempering with life and nature. If one is destined to die, then they are destined to die. If we are to change that, then the world will not be able to uphold our population. But, then if the chooses to have another kid then it would be okay to do so. As long as its for love and not science.