Adam Housley at Fox News has a blog posting about mini-subs used by the South American drug cartels for transporting their goods to the U.S. The technology used and frequency of detection is disconcerting.
In the last 6 months the U.S. Coast Guard along with the U.S. Navy have found 42 submersibles headed north towards the United States and off the coast of Central America. That is double the number found in the previous 5 years combined. These subs can carry as much as 10 tons of drugs or even weapons and some of the latest models can move 15 knots.
Imagine all the subs that are not detected! Fascinating story from Fox News.