Jared Bowen, GBH culture editor who covers arts and TV. Juliana Hatfield, longtime Boston indie singer-songwriter promoting Lightning Might Strike and performing live. Juliette Kayyem, national security expert on international trust and Greenland. Joe Kearns Goodwin, Army veteran reflecting on service and civic ties. Doris Kearns Goodwin, presidential historian on public service and civic engagement. They discuss culture, national security, live music, and whether service can bridge divides.