For decades, heroin dominated the illegal opioid trade in the United States. Then cartels discovered fentanyl, a synthetic drug that was cheaper to produce, easier to transport, and dramatically more profitable. The shift transformed the economics of drug trafficking and contributed to a surge in overdose deaths across the country. It's a powerful example of how incentives and business models can reshape entire industries, even illegal ones. Watch the full video here: youtu.be/5WRtyfnmh3M #fentanyl #drugtrade #economics #cartels #business