Hockey season is here, with the NHL's preseason kicking off this weekend and many kids and parents gearing up for youth leagues. As the father of three pro hockey players, Karl Subban knows the excitement this time of year can spur – a feeling he aims to capture in his new book for kids, The Hockey Skates. Subban joins Piya Chattopadhyay to talk about his family's experience overcoming adversity in hockey, and why he still feels optimistic about the sport despite the cultural problems that continue to plague it.