Guests: Matea Gold, Sam Kean

SAM KEAN’s new book says we’re all inhaling history with each breath that we take. In Caesar’s Last Breath, he discusses the now-standard calculation used in chemistry and physics classes that can determine the probability of inhaling a particle of the final exhalation of Caesar. From there, Kean explores all of the gasses of the periodic table, as well as the scientists who have studied them. Kean joins Marty this hour for a discussion of science, history, and air. But first, we’ll talk with The Washington Post’s MATEA GOLD about the disconnect between President Trump’s views on outsourcing job and his daughter Ivanka’s use overseas labor for her fashion line.