Chinese Scientists Just Successfully Cloned Monkeys and Humans Could Be Next
It's worth noting that Zhong Zhong and Hua Hua are just two successful pregnancies out of 79 cloned embryos. Of these 79 potential monkeys, transplanted into 21 surrogate mothers, there were only six successful pregnancies, and four of those clones died before birth.
This is, then, clearly a technology that is a long way from perfection, and this alone is enough to raise ethical implications when experimenting with human embryos. Either way, we're probably a long way away from being able to make a human in the first place, despite the fact that Zhong Zhong and Hua Hua prove that there's an outside chance we might manage it if we were persistent enough.
The debate surrounding human cloning is only going to get more complex as time goes by. On the one hand, the possibility to growing replacement organs has its appeal, but at the same time, the rights of these clones still need to be protected.
Nobody wants a Michael Bay The Island situation in the future, even if it does lead to a situation where there are two Ewan McGregors running around the world, doubling our supply of potential Obi Wan Kenobis for future Star Wars movies.
Regardless, there is a certain amount of vanity present in the mind of anyone who wants to clone themselves; an implicit admission that they think that their own genetic code is somehow above improvements or design suggestions from a member of the opposite sex.
Nevertheless, human cloning could lead to a future with more medical options available to those with organ defects or genetic illnesses. There could be some significant benefits to letting this technology develop further.
Just so long as we don't let any ambitious politicians start raising a grand clone army. Even having two Obi Wans on hand won't be able to help that situation.