There was this interesting documentary on History the other night about the small Colombian submarines that the drug dealers use to smuggle Cocaine to the US. I don't know what part of their claim was based on fact but it was said that although these small submarines worth up to $1,000,000 but the profit they make is too much that they get disposed of after delivering their load. At the same time the US Coast Guard was saying that they had found Zinc, I guess, in the boats and since the metal prevents corrosion and oxidization, it could also be concluded that not all the submarines are made for the one-way trip.
One thing that I am certain about is that the US and no other country will ever completely shut down the drug market because if they do, then how the ones who are benefiting from that, will be kept happy?
The documentary conveys that Russian or even possibly American scientist are behind the design and manufacturing of these submarines.
(Photo: This picture that I took from our old Sony Trinitron's screen and you can see the History channel on the bottom right of it, shows one of the Colombian submarines that have been captured by authorities. By looking at the person standing on the boat, you can compare the size of this submarine to the regular ones used by navy forces around the world. The size and simplicity of the design makes it very impossible to be detected by Radar and other devices used by coast guards and anti-drug authorities)