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What if we told you that the key to time travel has been right in front of our eyes this whole time? Well, it has: it's in our noses. Today on the show, the science — and politics — of smell, and how it links our past and our present.For sponsor-free episodes of Throughline, subscribe to Throughline+ via Apple Podcasts or at plus.npr.org/throughlineLearn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy