The key to good communication is in the delivery – literally. This week on America in Pursuit, how the creation of the U.S. postal service transformed our political culture and helped start a revolution, one letter at a time. To access bonus episodes and listen to Throughline sponsor-free, subscribe to Throughline+ via Apple Podcasts or at plus.npr.org/throughline. To manage podcast ad preferences, review the links below: See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy