The President's Commission on Critical Infrastructure Protection, Critical Foundations, was a report of a multi-agency effort to "study the critical infrastructures that constitute the life support systems of (the United States), determine their vulnerabilities, and propose a strategy for protecting them in the future".2 Spurred by this report, the President signed Presidential Decision Directive 63 which built upon the PCCIP's recommendations. In signing PDD-63, the President's intent was for the United States to "take all necessary measures to swiftly eliminate any significant vulnerability to both physical and cyber attacks on our critical infrastructures, including especially our cyber systems".3 One of the goals of PDD-63 was to create a national center to warn of significant infrastructure attacks, to include the detection and analysis of such attacks, with maximum participation from the private sector. This task fell to the FBI's National Infrastructure Protection Center (NIPC) to provide threat assessment, warning, vulnerability assessment, and law enforcement investigation and response.4 Now, nearly two years hence, these encompassing tasks are largely going undone while the NIPC focuses nearly all its resources on law enforcement investigation and response, with only minor Information Sharing and Analysis Center (ISAC) coordination. It is the purpose of this paper to show that national cyber threat warning measuresare important for protecting critical infrastructures. Further, this paper asserts that tactical and strategic cyber threat warning is inadequate and needs to be reassessed vis- -vis the role of the Department of Defense, the Intelligence Community, and the Justice Department.