David Greene is an award-winning journalist and New York Times best-selling author. He is a host of NPR's Morning Edition, the most listened-to radio news program in the United States, and also of NPR's popular morning news podcast, Up First.
Shankar Vedantam is the host and creator of Hidden Brain. The Hidden Brain podcast receives more than three million downloads per week. The Hidden Brain radio show is distributed by NPR and featured on nearly 400 public radio stations around the United States.