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Terror has a Name – Inside Los Zetas Cartel with Leo Silva

Mar 25, 2025

In this gripping episode, we sit down with former DEA Special Agent and author Leo Silva to discuss the evolving landscape of the illicit drug trade and the growing sophistication of cartel operations. Drawing from his experiences detailed in Reign of Terror, Silva provides a firsthand account of how organizations like Los Zetas have transformed from traditional drug traffickers into highly organized, militarized criminal enterprises.

We explore the new challenges law enforcement faces, including the cartels' use of advanced technology, encrypted communications, and financial networks that rival those of legitimate corporations. Silva also sheds light on the increasing dangers posed by synthetic drugs like fentanyl, the deep-rooted corruption that enables these networks to thrive, and the shifting alliances that make combating them even more complex.

Throughout the discussion, Silva shares powerful stories of resilience, the personal toll of fighting the war on drugs, and what steps must be taken to curb the growing influence of cartels.

In this episode, we discuss: 

  • How Los Zetas cartel pioneered a new level of brutality and control
  • Why Mexico's war on drugs has failed—and how it impacts the U.S.
  • The role China plays in fueling the fentanyl crisis
  • How law enforcement can fight back using anti-terror tactics
  • What every American should know about how fentanyl gets into our streets

You can learn more about Agent Leo Silva's work in his book "Reign of Terror."

 

 

Listen and subscribe on your favorite podcast player:

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Views expressed in this material are opinions of the host and the guest, and do not necessarily reflect the views of Rigaku Analytical Devices.

 

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Michael W. Brown is the global director of counter-narcotics technology at Rigaku Analytical Devices. He has a distinguished career spanning more than 32 years as a Special Agent for the Drug Enforcement Administration (DEA). He served as the country attaché in India and Myanmar; During his tour in Myanmar, he provided foreign advisory support for counter narcotic enforcement that, to date, has resulted in the interdiction of over US$250 million in precursor chemicals and implementing the regions first use of Raman spectroscopy to degrade the supply chain for narcotics production. He was also part of a special specialized counter narcotics unit operating in the jungles of South America tasked with locating and destroying drug labs and narcotic supply chains. Most recently he was the DEA Headquarters staff coordinator for the Office of Foreign Operations for the Middle East-Europe-Afghanistan-India. Michael is a graduate of the United States Ranger Training Battalion and has a master’s degree in interdisciplinary technology and management from the University of Eastern Michigan.

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