The US Coast Guard pulled in a Drug Sub near Ecuador a while ago. It's parked on the pier here in Key West. We go past it every time we go out spearfishing. At first when I heard "Drug Sub" I imagined a small sub. A real sub, in other words. This thing is just a big old boat with the top sawed off! It ran just under the surface of the water and was stuffed with drugs bound for the US. Exiting stuff!
