About this episode
This week, Endless Thread goes underground and back in time -- into what just might be the most important vault in the world. What's inside that vault? A treasure that originates with a Russian scientist during World War II. *** Survey alert : Tell us what you love about the show, what you want more of; what you could stand a little less of. And if you complete the survey, we'll send you an extra episode (what Ben's calling a "dashboard confessional") in January. Take the survey here: wbur.org/endlessthreadsurvey Thank you!