Money. Doing biology research is expensive. You'd have to find a country that cares about blue-sky health research and not bioethics, which sounds tricky. De

Money. Doing biology research is expensive. You'd have to find a country that cares about blue-sky health research and not bioethics, which sounds tricky. Despite the hype, this sort of technology wouldn't have any useful immediate applications- even if we could make a human with a complete custom genome, we don't have a good idea a what genes to give him/her in order to produce useful qualities like intelligence, strength, etc.