[P]olicy-makers have been working to address some of the concerns about mining…[M]anufacturers often source…[conflict] minerals…and their sale has been fuelling war, human rights abuses and the use of child labour…The Kimberley Process… has ultimately failed to stem the flow of blood diamonds…[T]he gold industry…launched…the Conflict-Free Gold Standard…Ethical campaigners are making sure the world at large knows exactly what goes on in mining…[I]s all this work, legislation and campaigning making a difference? On Thursday 13 December from 2-4pm GMT [The Guardian will]…be discussing this …question… [with] a panel of experts. [refers to International Council on Mining and MetalsCRED Jewellery, Maplecroft]