Since DHS began operations in March 2003, it has developed and implemented key policies, programs, and activities for implementing its homeland security missions and functions that have created and strengthened a foundation for achieving its potential as it continues to mature. However, the department’s efforts have been hindered by challenges faced in leading and coordinating the homeland security enterprise; implementing and integrating its management functions for results; and strategically managing risk and assessing, and adjusting as necessary, its homeland security efforts. DHS has made progress in these three areas, but needs to take additional action, moving forward, to help it achieve its full potential. DHS has made important progress in implementing and strengthening its mission functions over the past 8 years, including implementing key homeland security operations and achieving important goals and milestones in many areas. The department’s accomplishments include developing strategic and operational plans across its range of missions; hiring, deploying and training workforces; establishing new, or expanding existing, offices and programs; and developing and issuing policies, procedures, and regulations to govern its homeland security operations. For example:  DHS issued the QHSR, which provides a strategic framework for homeland security, and the National Response Framework, which outlines guiding principles for disaster response.  DHS successfully hired, trained, and deployed workforces, such as a federal screening workforce which assumed security screening responsibilities at airports nationwide, and the department has about 20,000 agents to patrol U.S. land borders.  DHS created new programs and offices, or expanded existing ones, to implement key homeland security responsibilities, such as establishing the United States Computer Emergency Readiness Team to, among other things, coordinate the nation’s efforts to prepare for, prevent, and respond to cyber threats to systems and communications networks. DHS also expanded programs for identifying and removing aliens subject to removal from the United States and for preventing unauthorized aliens from entering the country.  DHS issued policies and procedures addressing, among other things, the screening of passengers at airport checkpoints, inspecting travelers seeking entry into the United States, and assessing immigration benefit applications and processes for detecting possible fraud. Establishing these elements and others are important accomplishments and have been critical for the department to position and equip itself for fulfilling its homeland security missions and functions. However, more work remains for DHS to address gaps and weaknesses in its current operational and implementation efforts, and to strengthen the efficiency and effectiveness of those efforts to achieve its full potential. For example, we have reported that many DHS programs and investments have experienced cost overruns, schedule delays, and performance problems, including, for instance, DHS’s recently cancelled technology program for securing U.S. borders, known as the Secure Border Initiative Network, and some technologies for screening passengers at airport checkpoints. Further, with respect to the cargo advanced automated radiography system to detect certain nuclear materials in vehicles and containers at ports DHS pursued the acquisition and deployment of the system without fully understanding that it would not fit within existing inspection lanes at ports of entry. DHS subsequently canceled the program. DHS also has not yet fully implemented its roles and responsibilities for developing and implementing key homeland security programs and initiatives. For example, DHS has not yet developed a set of target capabilities for disaster preparedness or established metrics for assessing those capabilities to provide a framework for evaluating preparedness, as required by the Post-Katrina Emergency Management Reform Act. Our work has shown that DHS should take additional action to improve the efficiency and effectiveness of a number of its programs and activities by, for example, improving program management and oversight, and better assessing homeland security requirements, needs, costs, and benefits, such as those for key acquisition and technology programs. Table 1 provides examples of key progress and work remaining in DHS’s functional mission areas, with an emphasis on work we completed since 2008. Impacting the department’s ability to efficiently and effectively satisfy its missions are: (1) the need to integrate and strengthen its management functions; (2) the need for increased utilization of performance assessments; (3) the need for an enhanced use of risk information to inform planning, programming, and investment decision-making; (4) limitations in effective sharing and use of terrorism-related information; (5) partnerships that are not sustained or fully leveraged; and (6) limitations in developing and deploying technologies to meet mission needs. DHS made progress in addressing these areas, but more work is needed, going forward, to further mitigate these challenges and their impact on DHS’s mission implementation. For instance, DHS strengthened its performance measures in recent years and linked its measures to the QHSR’s missions and goals. However, DHS and its components have not yet developed measures for assessing the effectiveness of key homeland security programs, such as programs for securing the border and preparing the nation for emergency incidents. For example, with regard to checkpoints DHS operates on U.S. roads to screen vehicles for unauthorized aliens and contraband, DHS established three performance measures to report the results of checkpoint operations. However, the measures did not indicate if checkpoints were operating efficiently and effectively and data reporting and collection challenges hindered the use of results to inform Congress and the public on checkpoint performance. Moreover, DHS has not yet established performance measures to assess the effectiveness of its programs for investigating alien smuggling operations and foreign nationals who overstay their authorized periods of admission to the United States, making it difficult for these agencies to determine progress made in these areas and evaluate possible improvements. Further, DHS and its component agencies developed strategies and tools for conducting risk assessments. For example, DHS has conducted risk assessments of various surface transportation modes, such as freight rail, passenger rail, and pipelines. However, the department needs to strengthen its use of risk information to inform its planning and investment decision-making. For example, DHS could better use risk information to plan and prioritize security measures and investments within and across its mission areas, as the department cannot secure the nation against every conceivable threat. In addition, DHS took action to develop and deploy new technologies to help meet its homeland security missions. However, in a number of instances DHS pursued acquisitions without ensuring that the technologies met defined requirements, conducting and documenting appropriate testing and evaluation, and performing cost-benefit analyses, resulting in important technology programs not meeting performance expectations. For example, in 2006, we recommended that DHS’s decision to deploy next-generation radiation-detection equipment, or advanced spectroscopic portals, used to detect smuggled nuclear or radiological materials, be based on an analysis of both the benefits and costs and a determination of whether any additional detection capability provided by the portals was worth their additional cost. DHS subsequently issued a cost-benefit analysis, but we reported that this analysis did not provide a sound analytical basis for DHS’s decision to deploy the portals. In June 2009, we also reported that an updated cost-benefit analysis might show that DHS’s plan to replace existing equipment with advanced spectroscopic portals was not justified, particularly given the marginal improvement in detection of certain nuclear materials required of advanced spectroscopic portals and the potential to improve the current- generation portal monitors’ sensitivity to nuclear materials, most likely at a lower cost. In July 2011, DHS announced that it would end the advanced spectroscopic portal project as originally conceived given the challenges the program faced. As we have previously reported, while it is important that DHS continue to work to strengthen each of its functional areas, it is equally important that these areas be addressed from a comprehensive, departmentwide perspective to help mitigate longstanding issues that have impacted the department’s progress. Our work at DHS has identified several key themes—leading and coordinating the homeland security enterprise, implementing and integrating management functions for results, and strategically managing risks and assessing homeland security efforts—that have impacted the department’s progress since it began operations. These themes provide insights that can inform DHS’s efforts, moving forward, as it works to implement its missions within a dynamic and evolving homeland security environment. DHS made progress and has had successes in all of these areas, but our work found that these themes have been at the foundation of DHS’s implementation challenges, and need to be addressed from a departmentwide perspective to position DHS for the future and enable it to satisfy the expectations set for it by the Congress, the administration, and the country. Leading and coordinating the homeland security enterprise. While DHS is one of a number of entities with a role in securing the homeland, it has significant leadership and coordination responsibilities for managing efforts across the homeland security enterprise. To satisfy these responsibilities, it is critically important that DHS develop, maintain and leverage effective partnerships with its stakeholders, while at the same time addressing DHS-specific responsibilities in satisfying its missions. Before DHS began operations, we reported that the quality and continuity of the new department’s leadership would be critical to building and sustaining the long-term effectiveness of DHS and achieving homeland security goals and objectives. We further reported that to secure the nation, DHS must form effective and sustained partnerships between components and also with a range of other entities, including federal agencies, state and local governments, the private and nonprofit sectors, and international partners. DHS has made important strides in providing leadership and coordinating efforts. For example, it has improved coordination and clarified roles with state and local governments for emergency management. DHS also strengthened its partnerships and collaboration with foreign governments to coordinate and standardize security practices for aviation security. However, DHS needs to take additional action to forge effective partnerships and strengthen the sharing and utilization of information, which has affected its ability to effectively satisfy its missions. For example, we reported that the expectations of private sector stakeholders have not been met by DHS and its federal partners in areas related to sharing information about cyber-based threats to critical infrastructure. Without improvements in meeting private and public sector expectations for sharing cyber threat information, private-public partnerships will remain less than optimal, and there is a risk that owners of critical infrastructure will not have the information and mechanisms needed to thwart sophisticated cyber attacks that could have catastrophic effects on our nation’s cyber-reliant critical infrastructure.