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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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September 6, 2025 - PBS News Weekend full episode
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Season 2025 Episode 249
September 6, 2025 - PBS News Weekend full episode
September 6, 2025 - PBS News Weekend full episode
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Season 2025 Episode 248
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Season 2025 Episode 247
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Season 2025 Episode 246
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Season 2025 Episode 245
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September 2, 2025 - PBS News Hour full episode
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Season 2025 Episode 244
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Season 2025 Episode 243
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Season 2025 Episode 242
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Season 2025 Episode 241
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Season 2025 Episode 240
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August 28, 2025 - PBS News Hour full episode
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Season 2025 Episode 239
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Season 2025 Episode 238
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