No discussion of Genetic Engineering in the context of Future Human Evolution would be complete without covering the Eugenics movement. Eugenics is the science of improving human heredity characteristics. Raising the bar on our collective gene pool by encouraging the propagation of desirable genes (positive Eugenics) while discouraging an increase in undesirable genes (negative Eugenics). In other words, selective breeding.
The movement began in the 19th century, founded by Sir Francis Galton. While he focused primarily on positive Eugenics, the 20th century saw the more aggressive promotion and application of negative Eugenics (such as sterilization of the unfit), eventually resulting in the movement being tied to Hitler and the Nazi party. This marked the eventual demise of Eugenics as a popular or even socially acceptable movement.
However, because the goals of Eugenics are for the betterment of the human race, individuals and organizations can still be found that support both forms of Eugenic tactics.
While we agree with the general goals of furthering human evolution, the devil, of course, is in the details.
Read More: Eugenics, Genetic Engineering Lite