Critical Infrastructure Protection: Challenges in Addressing Cyber Security, Statement of David A. Powner, Director, Information Technology Management Issues, Testimony before the Subcommittee on Federal Financial Management, Government Information, and International Security, Senate Committee on Homeland Security and Governmental Affairs [open pdf - 186KB]
From the Highlights: "Increasing computer interconnectivity has revolutionized the way that our government, our nation, and much of the world communicate and conduct business. While the benefits have been enormous, this widespread interconnectivity also poses significant risks to our nations computer systems and, more importantly, to the critical operations and infrastructures they support. The Homeland Security Act of 2002 and federal policy established the Department of Homeland Security (DHS) as the focal point for coordinating activities to protect the computer systems that support our nations critical infrastructures. GAO was asked to summarize previous work, focusing on (1) DHSs responsibilities for cybersecurity related critical infrastructure protection (CIP), (2) the status of the departments efforts to fulfill these responsibilities, (3) the challenges it faces in fulfilling its cybersecurity responsibilities, and (4) recommendations GAO has made to improve cybersecurity of our nations critical infrastructure."
Government Accountability Office: http://www.gao.gov