I thought the tunnel coming up inside a fast food restaurant was interesting. How the hell do you navigate underground? The article above said the newly discovered tunnel was 25' deep, (No peeking up from that depth.)
I'd always assumed tunnels were for people moving, but this article made me realize that they're strictly for moving drugs.
Why only drugs?
With a rail system, people can sit or probably lay down and roll through the tunnel. Think or watch "The Great Escape".
