Illegal gold rush sees Colombia's drug barons cash in
An illegal gold rush has developed in Colombia after armed gangs diverted their attention from the cocaine industry to another, very profitable one.
Colombia's President Juan Manuel Santos said the high price of gold has also meant a high price for the environment.
The BBC's Alastair Leithead has visited one of the illegal mines to see how they operate.
- 22 November 2011
- BBC News