"The National interest in Homeland Defense was the farthest thing from most American's minds prior to the horrific attacks of the Pentagon and the World Trade Center. The worst nightmares of many Department of Defense leaders and technologists had been realized. Our Country was hit, and hit hard. No longer could we take for granted our borders, our way of life, or our freedom. For a short while, no cost was to high to re-secure these basic privileges of American life. But the practicality of manning and equipping airports, seaports, power plants, water supply, borders, and many other American Infrastructure entities demanded a more comprehensive and cost effective way of defending our homeland. One practical investment is in the Nation's network of airborne warning ground based radar systems that are deployed throughout the United States and Canada to monitor any air traffic entering either of these countries. This system of networked radars was designed with the philosophy that threats would originate outside the borders of the United States and Canada. The system worked so well, that when thoughts of expanded capability presented themselves, they were abandoned in favor of more (apparent) pressing issues. This paper addresses this system of systems, and how with some insertion of technology, it can absorb its share of the National Homeland Defense."
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/
Prepared for the 7th International Command and Control Research and Technology Symposium