Search and rescue.

See: search and rescue.

US Navy forces organized, trained, and equipped to conduct special operations in maritime, littoral, and riverine environments. (Source: DOD)

See: SEAL.

US Navy forces organized, trained, and equipped to conduct special operations in maritime, littoral, and riverine environments. (Source: DOD)

The use of aircraft, surface craft, submarines, and specialized rescue teams and equipment to search for and rescue distressed persons on land or at sea in a permissive environment. (Source: DOD)

As part of the Department’s layered approach to port and container security, the initial phase of Secure Freight Initiative will deploy of a combination of existing technology and proven nuclear detection devices to six foreign port beginning in early 2007.

Containers from the ports will be scanned for radiation and information risk factors before being allowed to depart for the United States. In the event of a detection alarm, both homeland security personnel and host country officials will simultaneously receive an alert. (Source: DHS)

The process of staying where you are and taking shelter, rather than trying to evacuate. (Source: Ready.gov)

A term used to indicate the general flow of merchant shipping between two departure/terminal areas.

A sandbank or bar that makes water shoal; i.e., a sand-bank that is not rocky and on which there is a water depth of 6 fathoms or less. (Source: DOD)

Surveillance, from the French for "watching over", is the observation and monitoring of behavior. Surveillance is often associated with the use of closed-circuit television cameras.