We Must Genetically Engineer Babies to Stop Disease

Imagine a world free of genetic diseases, where parents control their offspring's height, eye color and intelligence. The science may be closer than you think. Genes interact in ways that we don't fully understand and there could be unintended consequences, new diseases that result from our tinkering. But even if the science could be perfected, is it morally wrong? Nita Farahany argues it is not morally wrong to ask for a healthy child.