Money.  Doing biology research is <i>expensive</i>.<p>You&#x27;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&#x27;t have any useful immediate applications- even if we could make a human with a complete custom genome, we don&#x27;t have a good idea a <i>what</i> genes to give him&#x2F;her in order to produce useful qualities like intelligence, strength, etc.