Maritime attacks: detecting underwater terrorist threats / Jane's Homeland Security & Resilience Monitor 4 Aug 2006

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Joe Charlaff
"Although waterside port security includes threat platforms found above the water - such as fast boats, jet skis, swimmers and canoeists - it is just as important to examine the potential threats posed by divers, submersibles and underwater scooters. Underwater swimmers can serve as an ideal means by which to covertly deliver explosives or a chemical or biological weapon, and those with propulsion assistance can carry as much as a 100 kg payload." [Sub Required]