Retired DEA Agent Leo Silva has written a fascinating book titled "Reign of Terror" chronicling the rise and fall of Los Zetas.

In this Episode, Leo and I discuss his book, his career in the DEA, and his inside view of the ascendence of Los Zetas and the factors that lead to their demise.  During our discussion, Leo shares personal insights revealing the enormous cost of the fight to bring down Los Zetas -- on both sides of the border.