Misha Glenny explores the world of rare earth metals. Neodymium is vital for wind turbines and electric motors but can the world become less dependent on China to supply it? Guests: Dr Julie Klinger, Assistant Professor in the Department of Geography and Spatial Sciences at the University of Delaware and author of Rare Earth Frontiers: From Terrestrial Subsoils to Lunar Landscapes. Ian Higgins, managing director of Less Common Metals. Paul Atherley, chairman of Pensana. Producer: Ben Carter Editor: Hugh Levinson Sound engineer: James Beard Production coordinator: Janet Staples