From the article:
“As we are unable to conduct certain types of experiments in humans, it is essential that we have better models to more accurately study and understand human biology and disease,” said Juan Carlos Izpisua Belmonte, from the Salk Institute for Biological Sciences, California.
What types of experiments? Is it essential? It's a bit light on detail to be able to judge. I'm not a conspiracy theorist but I have less and less trust in Dr and research stories like this don't help. It could be for cancer treatment (it made no mention of transplants as noted on R5 according to a PP), it could be for heart disease. I wish they had been more specific.
Animal experiments pose some ethical questions as it is, would experiments on a part human/part monkey make it more ethical and socially acceptable or less?
“This breakthrough reinforces an increasingly inescapable fact: biological categories are not fixed — they are fluid. This poses significant ethical and legal challenges. Many of the frameworks we rely on to govern our behaviour are based on false assumptions, for example that there is a biological answer to the question ‘what is a human being?’ ” she said.
So we've had what is a woman, shall we progress to "what is a human?". Yea I don't see that ending well. Hence the Planet of the Apes references ...and actually biology categories of animal (reptiles, mammals etc) have and are fixed and have been since the beginning of time. Yes living beings evolve but they don't cross categories. It is only when humans, or more specifically, Drs/Scientists who have a God complex and want to have their name go down in history, come along that things get messed up.
As I pointed out, the Drs who messed with genetic engineering and breeched international ethical codes ended up in jail.
These embryos were only 4% human at 19 days. Ok, so what's next, make a 50/50 version so we can see if we can harvest organs and use them for transplants? Right .