It seems like the easy first step with "designer babies" is simply to correct obvious genetic defects. There are many genetic diseases that are the result of v

It seems like the easy first step with "designer babies" is simply to correct obvious genetic defects. There are many genetic diseases that are the result of very simple genetic flaws, with catastrophic results. Sickle-cell anemia is an example of this. Correcting a flaw like this isn't going to have big side-effects. If developed nations don't allow stuff like this, once the techniques get good enough, I can foresee some company setting up in another country with low regulation and offering services there. People with enough money just need to fly there for a few weeks, get their embryo treated and implanted, then fly home.