Pangolin Scales - The Most Trafficked Mammal in the World

Animal trafficking is the fourth largest industry for organized crime. Traders in Vietnam are rummaging through large green sacks filled with thousands of pangolin scales. They think they're bargaining with potential buyers, but they're really talking to Sarah Stoner's undercover colleagues. Police eventually seized 780 kilos of dried pangolin Scale and around 2,000 pangolins were killed.