Prometheus 6

Built with high-tech composite materials and camouflaged to blend in with the ocean, they are estimated to cost up to several million dollars apiece.

For US, a terror threat lurks in drug smuggling subs
Shift of cargo to arms and people is feared
By Bryan Bender, Globe Staff  |  August 17, 2008

KEY WEST, Fla. - Skimming just below the surface, they are extremely difficult to detect from surveillance aircraft or patrol boats. Their sleek design, up to 80 feet in length, can secretly carry several tons of cargo thousands of miles.

These "semi-submersibles," which exhibit some of the same characteristics as military submarines, mark a significant advancement in the ability of drug smugglers to slip past coastal defenses.

So far this year, the Coast Guard says it has encountered at least 27 such vessels headed toward the southern and western United States, more than in the previous six years combined, while far more are believed to have gone undetected, according to US military and law enforcement officials.

The growing number and increased sophistication of the vessels, officially designated "self-propelled semi-submersibles," has set off alarms at the highest levels of the US military and the federal Department of Homeland Security. Counterterrorism officials fear that what drug runners now use to deliver cocaine, terrorists could one day use to sneak personnel or massive weapons into the United States.

Navy Admiral James Stavridis, commander of the US Southern Command, the Miami-based military command that concentrates on Latin America, warned in a recent military journal article, "If drug cartels can ship up to 10 tons of cocaine in a semi-submersible, they can clearly ship or rent space to a terrorist organization for a weapon of mass destruction or a high-profile terrorist."

US intelligence officials have concluded the pod-like vessels are being constructed by outside specialists working in "expeditionary shipyards" - remote, makeshift facilities nestled along rivers or estuaries in the jungles of Colombia, the world's largest producer of cocaine - from which they are transported to the coast for the journey north.