Information assurance needs patching more holes, less chasing foes. .
The United States can improve the security of its information systems more quickly if it forsakes pointless obsession with threat. Instead, it should apply its formidable talents and resources to fixing the vulnerabilities that make these systems such tempting and rewarding targets. Dogged dependence on undependable information systems has created a target-rich environment on this country's own doorsteps. Cyberspace is right here on Earth. Hacker warfare proceeds entirely over a terrain of the defender's making.