Underwater Port Security System

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Underwater Port Security System (UPSS) was developed for the United States Coast Guard and the Maritime Safety and Security Teams (MSSTs) for defense against swimmer incursions. It includes the Underwater Inspection System (UIS) and the Integrated Anti-Swimmer System (IAS). Recent developments in terrorism have highlighted the need for underwater anti-frogman security^{[citation needed]}. The UPSS is made in the United States and is reported to be compact enough fit in a large suitcase.^{[citation needed]}

The Coast Guard unveiled the system in February 2005 at the Coast Guard Integrated Support Command in San Pedro, California.^{[citation needed]}