We spend more on chocolate each year than investors spend on gold - but as Easter approaches, how much do we truly understand about the sources or production methods of chocolate? Panorama reporter Paul Kenyon was undercover in West Africa as a cocoa trader and discovered a seven year old child working long hours on a cocoa farm, helping to make chocolate that we love so much. He bought a ton of cocoa made with child labor and saw how easy it was to sell it to the supply chain leading to our commercial street. He also helped rescue a 12-year-old boy who was being sold across the border, allowing him to pick cocoa as a modern slave and reunite with his mother. We first met those children who harvest cocoa but have never tasted chocolate.