As a 24-year-old, Mokhtar Alkhanshali left his life in San Francisco to explore the rich history of coffee farming in his ancestral home of Yemen. And it wasn’t until he arrived that he learned just how difficult it is to leave a country at war. Dave Eggers tells the story in “The Monk of Mokha” (Vintage Books), and Alkhanshali joins host Krys Boyd to talk about his experiences.