And, as with all technology, prices for that type of equipment fall fast when deployment ramps up and volume increases.

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The Federal Air Marshal Service officially began in 1968 as the Federal Aviation Administration's Sky Marshal Program, and in the 1970s, extortion-type hijackings in the Middle East led to the deployment of some air marshals overseas.

CNN: STORY HIGHLIGHTS

The last of the Royal Navy's Type 42 destroyers has returned to Portsmouth from its final deployment.

BBC: HMS Edinburgh returns to Portsmouth from final deployment

GuardianEdge products offer a breadth of encryption, port, device and file type control technologies while establishing a market-leading position in solving the operational issues of deployment, management, scalability, reporting, auditing and user productivity at the lowest possible total cost.

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