When China rolled out their trade sanctions regime against Australia to try and punish us for a litany of perceived insults, the trade of one commodity was conspicuously left untouched.China's desperate need to stimulate economic growth through construction has left them with an insatiable appetite for Australian iron ore.In this episode, we look at the incredible things they've built using our most valuable resource, and what might happen if they decide to stop buying it.Guests:Dinny McMahon, author of China's Great Wall of Debt: Shadow Banks, Ghost Cities, Massive Loans and the End of the Chinese MiracleDr Feng Chongyi, Associate Professor in China Studies, University of Technology, SydneyKevin Rudd, former Australian Prime Minister