A letter report issued by the Government Accountability Office with an abstract that begins "In September 2004, the Department of Homeland Security (DHS) established America's Shield Initiative (ASI)--a program that included a system of sensors, cameras, and databases formerly known as the Integrated Surveillance Intelligence System (ISIS)--to detect, characterize, and deter illegal breaches to the northern and southern U.S. borders. The goals of the ASI program were to address ISIS capability limitations and support the department's antiterrorism mission. In April 2005, department officials told GAO that ISIS was subsumed within ASI. By congressional mandate, GAO reviewed the program to determine (1) the operational needs that ASI was intended to address and DHS's plans for ASI, (2) the steps that DHS had taken to ensure that ASI was aligned with the department's enterprise architecture, and (3) the actions that DHS had taken to establish the capability to effectively manage ASI. In written comments, DHS agreed with a draft of this report, stating that it was factually correct in virtually all aspects. DHS also commented that it has ceased work on ASI and redirected resources to its Secure Border Initiative. It also described program management corrective actions that it plans to implement."