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Argument: Cloning technology is unsafe for the resulting life

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Parent Debate(s):

Debate: Ban on human reproductive cloning

Supporting Evidence:

"Bioethicist says human cloning is scary". CNN.com. July 17, 2002 - "the procedure is just not safe. And while Zavos and his group keep saying [they've] got something different, no one seems to know what it is.

I'm really worried that what they're going to do here is make a dead or deformed baby, not a healthy one.

MORE STORIES Team plans to clone up to 200 humans


KAGAN: And even what might start out as a healthy baby, didn't we see in some cloning experiments with rats of mice that they start out healthy, but then they end up developing some kind of weird deformity later in their life cycle?

CAPLAN: That's absolutely right. We've seen with Dolly [the sheep] that she's growing at about twice the normal rate that she should, and I've been keeping tabs on the cows, bulls, oxen that have been cloned. Over half of them have dropped dead unexpectedly. So clearly something's wrong when you're using old DNA from your skin cell or wherever you get it in your body, trying to use it in an egg. That handshake, that communication, doesn't work right and it makes for a, if you will, much great risk of producing something dead or deformed."

[...]But we don't have a ban in place yet. We should have had one a long time ago just on safety grounds.

KAGAN: You think we should have?

CAPLAN: Oh, yes. Purely on safety grounds. Put aside whether it's good to be a clone, whether it's odd to be a clone, whether it's strange to be made in someone else's image, the way this science is right now, not working well in animals, you absolutely don't want to do it in people. It's just barbaric human experimentation."


"Why Environmentalists Oppose Human Cloning And Inheritable Genetic Modification". Friends of the Earth. Retrieved June 3rd, 2008 - "An Unsafe and Cruel Experiment

Dolly the sheep was cloned and discarded more than 200 times before one even survived. Over 98% of clones are either stillborn, die shortly after birth, are malformed, or look normal, but have congenital defects like premature aging. Many animals cloned in experiments suffer from “large baby syndrome” in which the fetus grows to twice its normal size, sometimes resulting in the death of the mother. Any attempt to clone a human being would constitute an unethical experiment upon the resulting child-to-be."


John F. Kilner and Robert P. George. "Human Cloning: What’s at Stake". The Center for Bioethics and Dignity. 2004 - "Cloning also carries high risks of bodily harm to the child produced through cloning. Experiments in the cloning of animals reveals that a high percentage of clones of any mammalian species are born with, or develop, severe deformities or abnormalities. Indeed, Dolly the sheep, the most famous of all cloned mammals, was afflicted with a grave premature arthritis. Recently, South Korean cloning researchers have presented compelling evidence to this effect at the UN Headquarters in New York."


"Just Say No To Human Cloning". The Center for Public Justice. March 18, 1997 - "As scientists pointed out at the hearing, cloning research is not yet dependable. A human clone would carry genes from only one parent, not both as in normal reproduction. That fact alone raises questions aplenty. Two monkeys that were cloned represented only a small percentage of the 59 embryos transferred to surrogate mothers. The Scottish sheep cloning experiment turned out even worse: only one lamb survived out of 277 embryos."


John Kilner, president of the Centre for Bioethics and Human Dignity in the United States - "To subject human beings to cloning is not taking an unknown risk, it's knowingly harming people"[1]

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