Leftover emeralds: the dream of Colombia's poor miners

In this small community in the foothills of the eastern Andes mountains, multinational mining company Esmeralda Mining Services (EMS) deposits tons of earth it has processed from its operations into a cage-like enclosure. A few times a month, EMS allows hundreds of miners -- known as "guaqueros" or treasure hunters -- to search through the detritus and take home any precious stones they find. Among the miners is Miguel Hernandez, 72, who grips a cane as he waits outside the cage, where some hopefuls have queued since 3:00 am.