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Chinese scientist Hu Jinakui says that he edited the genes of an embryo during in vitro fertilization and that the embryo grew to be a girl who was born in November. If his claims are true, the girl is the world’s first genetically-modified human. Dr. Hu modified her genes to make her less likely to inherit the HIV virus from her father, who is HIV-positive. The techniques employed by Dr. Hu raise difficult ethical questions about the proper limits to genetically modifying humans. Plus, learn the English phrase “slippery slope.” Read the full transcript of this episode at http://www.plainenglish.com/110     Transcripts are always free and available now! ¿Hablas español? Você fala português? Parles-tu français? 你会说中文吗？日本語を話せますか？ The episode transcripts include instant translations from English to Spanish, Portuguese, French, Chinese and Japanese. Hover over or tap a highlighted word for the translation. Connect with Jeff on Twitter (@PlainEnglishPod) and Facebook (PlainEnglishPod). Or e-mail jeff@plainenglish.