NetworkWorld: In an essay titled "Defending a New Domain," William J. Lynn III, undersecretary of defense, warns that power grids, transportation networks, financial network systems, and Internet infrastructure could become military targets. "Protecting those networks and the networks that undergird critical U.S. infrastructure must be part of Washington's national security and homeland defense missions," Lynn writes.
The best-laid plans for defending military networks will matter little if civilian infrastructure -- which could be directly targeted in a military conflict or held hostage and used as a bargaining chip against the U.S. government -- is not secure," he adds. "The Defense Department depends on the overall information technology infrastructure of the United States... The Pentagon is therefore working with the Department of Homeland Security and the private sector to look for innovative ways to use the military's cyberdefense capabilities to protect the defense industry."