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PBS News Hour
Major Embryonic Stem Cell Advance Raises Ethical Quandaries
Researchers at Oregon Health and Science University have achieved a longtime goal. They cloned genes to create embryonic stem cells able to transform into tissues and organs genetically identical to patients who needs them. Jeffrey Brown talks to NPR's Rob Stein about the science as well as the ethical concerns.
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After Claudia Sheinbaum becomes the first woman to win Mexico's presidential election, a look at what that means for U.S. relations.