Why Border Walls Won’t Stop Fentanyl: Smarter Solutions to Combat Cartels
- Marco Lopez
- Jun 5
- 2 min read

Fentanyl and the powerful cartels behind it present one of the most dangerous security and public health threats of our time. Yet billions continue to be poured into building border walls—without solving the real problem.
As former mayor of a border city in Arizona, Director of the Arizona Department of Commerce, and Chief of Staff at U.S. Customs and Border Protection, I’ve seen firsthand how cartels evolve. Now, as CEO of Intermestic Partners—an international business advisory firm founded in 2011 specializing in cross-border trade and development—I help companies and policymakers navigate these complex challenges.
How Cartels Move Fentanyl
Fentanyl—a synthetic opioid up to 50x stronger than heroin—is often manufactured cheaply in Mexico and China before being trafficked into the U.S. Mexican cartels have built highly adaptable smuggling operations that evolve faster than physical security can keep up.
They exploit:
Ports of entry, where most fentanyl enters
Tunnels beneath the border
Ultralight aircraft, drones, and submarines
Complex financial and logistical networks
Why the Border Wall Fails
Despite billions spent, walls are not stopping fentanyl. According to multiple studies, most fentanyl is trafficked through legal checkpoints—not remote desert crossings where walls stand.
Over 90% of fentanyl seizures occur at legal points of entry, not in the areas where border walls are built.
Even with Arizona’s heavily fortified border, cartels quickly shifted to air, sea, and underground routes—highlighting the wall’s limited value.
Smarter Solutions to Disrupt Cartels
Fighting cartels requires multi-pronged strategies, not symbolic barriers:
1️⃣ Reduce Domestic Demand
Public education on opioid risks
Expanded addiction treatment and rehab
Smarter drug policy reforms
2️⃣ Modernize Ports of Entry
Advanced scanning technologies
Mobile inspection units
Better-trained interdiction teams
3️⃣ Deploy Cutting-Edge Surveillance
AI-powered ground sensors
Radar and infrared cameras
Predictive analytics for trafficking patterns
4️⃣ Strengthen Intelligence Sharing
Cross-agency and cross-border coordination
Real-time data sharing
Joint task forces targeting supply chains
The Path Forward
The idea that walls alone can stop fentanyl is dangerously outdated. We need to invest in technology, intelligence, and public health if we are serious about dismantling the cartels.
At Intermestic Partners, we work with top national and international companies to design cross-border solutions that blend security, policy, and economic stability. This isn’t just about protecting borders—it’s about protecting lives.
Let’s Build Smarter Solutions
The fentanyl crisis demands action grounded in reality, not politics. We must outthink, not just outspend, these organizations.
Partner with Intermestic Partners to explore strategic, actionable solutions that address both sides of the border. Together, we can build safer, more resilient communities.
This is an insightful take on a highly complex issue—appreciate the data-driven breakdown. It’s clear that long-term solutions require strategic thinking, not just physical barriers. Much like how platforms such as Reddy Book Club promote smarter digital engagement through skill and thought, policy solutions should also emphasize intelligence-led responses. Combating cartel operations needs coordination, technology, and innovation—something far beyond just border infrastructure. Great read!