Pulitzer Prize winning author Anthony Doerr talks about his new novel, "Cloud Cuckoo Land," and why he says his job as a writer is to reveal our interconnections as people, and as a planet.

Rep. Adam Schiff discusses the Democrats' agenda heading into the midterms, the January 6th investigation, and his new book, "Midnight In Washington: How We Almost Lost Our Democracy And Still Could."

Apoorva Mandavilli, New York Times science and global health reporter, discusses vaccine safety, parent hesitancy, and what vaccinating this age group could mean for the future of the pandemic.

Drug overdose deaths have hit a record high during the pandemic. Opioid expert Dr. Andrew Kolodny on why that is, and the roots of America's addiction crisis.

Vox's Umair Irfan joins Diane to discuss the stakes at the U.N.'s upcoming climate conference and what it will take to curb rising temperatures.

Doctor Francis Collins is stepping down as director of the National Institutes of Health after 12 years. He reflects on his legacy and his agency's efforts in the fight against COVID-19.