Global economic growth driven by China has generated an insatiable appetite for metals...But with success comes pressure, and environmental concerns are growing. Paul Skinner is the man at the top of Rio Tinto...Stephen Sackur asks whether the mining industry can be sustainable. [online interview refers to UN Special Representative on business & human rights (4:00), Grasberg Mine, Papau New Guinea (7:25), Australia uranium mining (14:30), Russian mining (17:00), Zimbabwe diamond mines (19:20), "Is there any regime that you would not do business with?" (20:20)]