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Conversation: Poet Natalie Diaz

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PBS News Hour

Chimpanzee Testing: Is it the Beginning of the End?

Medical experiments on chimpanzees can be invasive, involving injections, blood samples and liver biopsies. But some say it's the only way to advance medicine. Miles O'Brien reports explores whether there are ever instances in which the scientific value of research should offset the moral cost of working with chimps.
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