Foreign Service officers often serve for decades, carrying their knowledge and relationships from one administration to the next. But in just a few months, a new boss has fired or driven out many of the country’s most experienced diplomats. We look at the state of the State Department under Rex Tillerson. Guests: Jason Zengerle, a contributing writer for The New York Times Magazine, who interviewed Mr. Tillerson for one of our other podcasts, “The New Washington”; Nancy McEldowney, a former Foreign Service officer. For more information on today’s episode, visit nytimes.com/thedaily.