One thing bothers me about the article. This guy Kevin is able to get elderly relatives to practice good opsec. They walk to distant locations to make and receive calls, presumably at predetermined times; they avoid mentioning real names and other personally identifiable information; they speak for a strict 100 seconds or less. Carefully trained people could do all this certainly, but how would you train an elderly relative you left in your backward homeland with all this trade-craft, especially since you can't train them face to face, but you're limited to brief phone calls?

Perhaps the opsec has been exaggerated to make the article more thrilling, or the opsec is true but it's a professional smuggling ring not involving elderly relatives.