The McArthur River mine in the NT is one of the biggest open cut zinc mines in the world. Ten years down the track it's been discovered there's an enormous toxic waste problem, with no current solution. Reporter Jane Bardon investigates the scramble by mining giant Glencore and authorities to work out how to manage a pile of toxic waste the size of 250 Melbourne Cricket Grounds.
http://www.abc.net.au/radionational/programs/backgroundbriefing/glencores-acid-test/7162422