Once, at the MM International Airport, Lagos, Nigeria, I encountered an official of the National Drug Law Enforcement Agency (NDLEA) who asked me about the source of my income. I respectfully told him that I trade derivatives. The man became confused and exclaimed, "Derive… what?" I said derivatives. "What the hell do you mean by that?" he asked. Derivatives are financial instruments whose value is derived from an underlying asset, such as shares, bonds, currencies, commodities, or interest rates. They are used to speculating on the market and to hedge against risk. At this point, the 'officer' called one of his subordinates, "Detain this man until he is ready to say what he does for a living. Let him know we are here to fight money laundering, an aspect of President Buhari's war on corruption. Now, the tables have turned, and suddenly, I am the one who has become confused. I...