What is the second most profitable criminal enterprise?

Human Trafficking and Sexual Slavery is the second most profitable criminal enterprise on the planet, eclipsing all illegal gun and arm sales worldwide. Current projections indicate that Human Trafficking and Sexual Slavery will become the number one criminal enterprise within 3 to 5 years. This means that Human Trafficking and Sexual slavery will be the number one producing criminal enterprise in the world. Illegal drugs, arms and gun sales will pale in comparison to the amount of money which can be made by enslaving human beings.

Slavery is illegal worldwide.