Tyler Alderson talks with Michael O'Malley about his new book The Beat Cop, exploring the life of Irish music collector (and Chicago police chief) Francis O'Neill. O'Malley details O'Neill's life as well as his influence on our concepts of "Irish music." He also examines the power dynamics at play when a well-connected police chief collects music from his community, and the biases apparent in O'Neill's work. 58m.