Around 100 miners die in illegal South African gold mine

South African authorities sought to end illegal gold mining in a derelict gold mine in Stilfontein. Their strategy was to cut off the supplies that were being sent down to the miners to keep them alive. Now, in one mining complex below, it's clear a large number of the miners have died. Kimon de Greef is a South African reporter who's followed the standoff between the miners and the police at Stilfontein and explains the miners' dark world beneath the surface.