Sabrina Sholts, curator of biological anthropology at the Smithsonian Museum of Natural History, and author of the new book, “The Human Disease: How We Create Pandemics, from our Bodies to our Beliefs,” talks about humans' role and responsibility in diseases and pandemics. Then, Roberto Casati, director of the Jean Nicod Institute and professor at the School of Advanced Studies in the Social Sciences in Paris, shares more about maps, what they are and how they work in his new book “The Cognitive Life of Maps."