New, Improved Cocaine Submarines

The Joint Interagency Task Force tested different sensor sweeps on this captured submersible, in order to find how to better detect other narco subs in the future. Although these craft are difficult to spot, their controls are often cobbled together from spare parts and imprecisely constructed. Typically, the subs are built quickly in the jungle, utilizing power from electric generators, in order to avoid authorities. (ABC News)