A deep tunnel snaking nearly 600 yards from Mexico under the border and into a San Diego warehouse is one of the most sophisticated underground drug smuggling passageways ever discovered, complete with electricity, ventilation and an electronic rail system, federal authorities said.
Three people were taken into custody, and federal agents seized eight tons of marijuana and 325 pounds of cocaine they said was connected to the investigation.
http://www.nytimes.com/2013/11/01/us/tunnel-for-smuggling-found-under-border-tons-of-drugs-seized.html?_r=0