A letter report issued by the Government Accountability Office with an abstract that begins "The financing shortfall currently facing the Social Security program is significant. Without remedial action, program trust funds will be exhausted in 2040. Many recent reform proposals have included modifications of the indexing currently used in the Social Security program. Indexing is a way to link the growth of benefits and/or revenues to changes in an economic or demographic variable. Given the recent attention focused on indexing, this report examines (1) the current use of indexing in the Social Security program and how reform proposals might modify that use, (2) the experiences of other developed nations that have modified indexing, (3) the effects of modifying the indexing on the distribution of benefits, and (4) the key considerations associated with modifying the indexing. To illustrate the effects of different forms of indexing on the distribution of benefits, we calculated benefit levels for a sample of workers born in 1985, using a microsimulation model. We have prepared this report under the Comptroller General's statutory authority to conduct evaluations on his own initiative as part of a continued effort to assist Congress in addressing the challenges facing Social Security. We …

A letter report issued by the Government Accountability Office with an abstract that begins "To improve fleet support activities, the Navy is consolidating maintenance facilities and converting its shipyards from financing under the Navy Working Capital Fund to funding through direct appropriations (direct funding). Puget Sound Naval Shipyard was converted to direct funding in 2003. The National Defense Authorization Act for Fiscal Year 2006 directed the Navy to assess the impact of converting Puget Sound to direct funding and directed that GAO review the Navy's report. The Navy submitted its report to Congress in March 2006, confirming its position that direct funding was more advantageous than working capital funding and can best satisfy fleet maintenance priorities. GAO's objectives were to evaluate the extent to which the Navy's report (1) provided data and other supporting evidence for its overall assessment of the impact of converting Puget Sound to direct funding, (2) addressed unresolved issues that had been identified in prior studies, and (3) disclosed any other issues that have affected the implementation of direct funding."

A letter report issued by the Government Accountability Office with an abstract that begins "Information security is a critical consideration for federal agencies, which depend on information systems to carry out their missions. Increases in reports of security incidents demonstrate the urgency of adequately protecting the federal government's data and information systems. Agencies are required to report to the Office of Management and Budget (OMB) on their information security programs, and OMB is to report results to Congress. Agencies have reported progress in carrying out their activities and have used a variety of measures as the basis of that reporting. GAO was asked to (1) describe key types and attributes of performance measures, (2) identify practices of leading organizations for developing and using measures to guide and monitor information security activities, (3) identify the measures used by federal agencies and how they are developed, and (4) assess the federal government's practices for informing Congress on the effectiveness of information security programs. To do this, GAO met with leading organizations, consulted with experts, and reviewed major federal agencies' policies and practices."

A letter report issued by the Government Accountability Office with an abstract that begins "For many years, the United States has used economic sanctions, including the freezing of foreign regimes' assets, when such regimes have been determined to be a threat to the nation. In light of recent efforts to "recover"--or target, identify, freeze, and transfer--Iraqi assets, GAO was asked to examine overall U.S. efforts to recover foreign regimes' assets. This report (1) describes the approach the U.S. government uses to recover foreign regimes' assets, (2) examines the challenges the United States faces in recovering foreign regimes' assets, and (3) examines the mechanisms the United States has used to recover Iraqi assets and their applicability to future efforts."

A letter report issued by the Government Accountability Office with an abstract that begins "Congestion is a serious and growing transportation problem for the nation. Many strategies--like adding new lanes--have the potential to alleviate congestion but can be costly and have limited application. Another strategy is the use of communications, electronics, and computer technologies--intelligent transportation systems (ITS)--to more effectively utilize existing transportation infrastructure by improving traffic flow. Congress established an ITS program in 1991, and the Department of Transportation (DOT) subsequently set an ITS deployment goal. In this report GAO (1) describes the federal role in deployment; (2) assesses DOT's ITS goal and measurement efforts; (3) identifies what ITS studies have found regarding the impacts of ITS deployment; and (4) identifies the barriers to ITS deployment and use."

A letter report issued by the Government Accountability Office with an abstract that begins "In 1998, Congress passed the Chesapeake Bay Initiative Act to establish a linked network of locations, such as parks, historic seaports, or museums--known as gateways--where the public can access and experience the bay. The National Park Service (Park Service) provides support to the gateways through a related grant program. In 2005, congressional concerns were raised about the Park Service's management of the program. GAO was asked to determine the extent to which the (1) criteria for selecting gateways are transparent and consistently applied; (2) grants have been awarded to support the program goals of conserving and restoring, interpreting, and accessing bay-related resources; and (3) Park Service has taken action to improve program management and oversight. To conduct this work, GAO, among other things, examined Park Service files and interviewed Park Service officials, as well as other officials involved in the program."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) is required by law to conduct a comprehensive examination of the national defense strategy, force structure, modernization plans, infrastructure, and budget every 4 years including an assessment of the force structure best suited to implement the defense strategy at low-to-moderate level of risk. The 2006 Quadrennial Defense Review (QDR), completed in February 2006, represents the first comprehensive review that DOD had undertaken since the military forces have been engaged in operations in Iraq and Afghanistan. GAO was asked to assess (1) the strengths and weaknesses of DOD's approach and methodology for the 2006 QDR and (2) what changes, if any, in the QDR legislation could improve the usefulness of the report, including any changes that would better reflect 21st century security conditions. To conduct its review, GAO analyzed DOD's methodology, QDR study guidance, and results from key analyses and also obtained views of defense analysts within and outside of DOD."

A letter report issued by the General Accounting Office with an abstract that begins "The Andean region continues to cultivate, produce, and export almost all of the world's cocaine as well as an increasing amount of heroin, according to the State Department. Colombia is the source of 90 percent of the cocaine entering the United States and about two-thirds of the heroin found on the East Coast. Although coca cultivation estimates have fallen by about two-thirds in Bolivia and Peru since 1996, increases in coca cultivation in Colombia have offset much of these successes. Under State's Bureau for International Narcotics and Law Enforcement Affairs, the Office of Aviation, through a contract with DynCorp Aerospace Technology, supports foreign governments' efforts to locate and eradicate illicit drug crops in the Andean region. In recent years, DynCorp has maintained and operated aircraft to locate and eradicate drug crops in Colombia, trained pilots and mechanics for the Colombian Army Aviation Brigade, and provided logistical and training support for the aerial eradication programs of the Colombian National Police and manual eradication programs in Bolivia and Peru. The Office of Aviation met both State's overall contracting oversight requirements and more specific oversight and evaluation requirements in …

A chapter report issued by the General Accounting Office with an abstract that begins "The Department of Housing and Urban Development (HUD) routinely acquires new information systems and enhancements to manage and support its various programs and operations. GAO has designated HUD's major program areas as high risk, in part because the department's information and financial management systems are poorly integrated, ineffective, and generally unreliable. HUD has been trying to improve its systems to better support its missions and management reforms. HUD did not fully satisfy the requirements for any of the "repeatable" key process areas GAO reviewed. Although HUD's software acquisition process has several strengths, GAO found weaknesses in all key software process areas evaluated: requirements development and management, project management, contract tracking and oversight, and software evaluation. As a result, HUD's processes for acquiring software are immature and ad hoc, sometimes chaotic, and not repeatable across projects. HUD acknowledges these weaknesses, is committed to improving its software and system acquisition processes, and will soon begin a process improvement effort."

A letter report issued by the General Accounting Office with an abstract that begins "Children diagnosed with attention deficit disorders are often treated with stimulant medications, such as Ritalin or Adderall. These drugs are controlled substances under federal law because of their high potential for abuse. Many of these stimulant drugs must be taken several times a day to be effective, so children need medication during the school day. Concern has arisen that the increasing use of these medications in school might provide additional opportunities for drug abuse. No data exists on the extent to which attention disorder drugs have been diverted or abused at school, or the extent to which state laws or regulations guide local school officials in safely administering these drugs. Middle and high school principals reported little diversion or abuse of attention disorder drugs. For the first seven to nine months of school year 2000-2001, about eight percent of principals in public middle and high schools reported that attention disorder drugs had been diverted or abused at their school. Most of the principals reported that school officials administer attention disorder medications, with about two percent of the school's students on average being administered attention disorder drugs …

A letter report issued by the General Accounting Office with an abstract that begins "People are the federal government's most valuable asset. Studies of private and public sector organizations have shown that high-performing organizations value and invest in their employees--human capital--and align their "people policies" to support organizational performance goals. In the federal government, however, strategic human capital management is a pervasive challenge. GAO has included human capital on its high-risk list. The Administration's emphasis on workforce planning and restructuring will require federal agencies to flatten their organizational hierarchy and improve their work processes. To optimize the services provided to citizens, federal employees must understand the link between their daily work and the results their organization seeks to achieve. For the initiatives GAO reviewed, agencies had to overcome organizational and cultural barriers, including a lack of trust, resistance to change and lack of buy-in from front-line employees and managers, and various implementation issues, such as workload demands. The agencies developed strategies to address these barriers, such as maintaining open communication and reassigning and hiring personnel. In implementing the practices to empower and involve employees, agencies identified a range of examples to demonstrate the performance improvements these efforts have accomplished."

A letter report issued by the General Accounting Office with an abstract that begins "U.S. dairy farmers produced 167.7 billion pounds of unprocessed, raw milk in 2000. Federal and state dairy programs influence the minimum prices paid to farmers for raw milk. These prices are based on how the raw milk is to be used. Minimum prices set for raw milk to be used for making drinking milk (fluid milk) are higher than those for milk used for manufacturing cheese, butter, and other dairy products. About 70 percent of the raw milk produced in the United States is regulated under the U.S. Department of Agriculture's (USDA) federal milk marketing order program. The 1996 farm bill established another pricing program -- the Northeast Interstate Dairy Compact (NEDC) -- which is run by a commission that sets a minimum price for raw milk sold as fluid milk in six New England states. The NEDC works in conjunction with federal and state dairy programs to establish an alternative minimum price for raw milk in the Compact states. When the monthly NEDC minimum price exceeds the federal marketing order or state minimum price, the NEDC price becomes the minimum price. Congress is now considering …

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) relies on its science and technology community to develop innovative technologies for weapon systems, spending $13 billion on basic, applied, and advanced technology research. Several GAO reports have addressed problems in transitioning technologies to the acquisition community. This report, which was prepared under the Comptroller General's authority to conduct evaluations, compares DOD's technology transition processes with commercial best practices. Specifically, GAO identifies technology transition techniques used by leading companies and assesses the extent to which DOD uses the techniques"

The 100-F-43 waste site is the portion of the former discharge spillway for the PNL Outfall formerly existing above the ordinary high water mark of the Columbia River. The spillway consisted of a concrete flume used to discharge waste effluents from the 100-F Experimental Animal Farm. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.

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The 1607-F5 waste site is a former septic tank, tile field, and associated pipeline located within the 100-FR-1 Operable Unit that received sewage from the former 181-F Pumphouse. Lead, gamma-chlordane, and heptachlor epoxide were identified within or around the septic system at concentrations exceeding the direct exposure cleanup criteria. Multiple metal and pesticide constituents were also identified as exceeding the groundwater and river protection cleanup criteria. The results of verification sampling demonstrated that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also showed that residual contaminant concentrations are protective of groundwater and the Columbia River.

Elastic constants for tantalum single crystals have been calculated by Orlikowski, et al. [1] for a broad range of temperatures and pressures. These moduli can be utilized directly in continuum crystal simulations or dislocation dynamics calculations where the individual grains of the polycrystalline material are explicitly represented. For simulations on a larger size scale, the volume of material represented by the quadrature points of the simulation codes includes many grains, and average moduli are needed. Analytic bounding and averaging schemes exist, but since these do not account for nonuniform stress and strain within the interacting grains, the upper and lower bounds tend to diverge as the crystal anisotropy increases. Local deformation and stress equilibrium accommodate the anisotropic response of the individual grains. One method of including grain interactions in shear modulus averaging calculations is through a highly-descretized finite element model of a polycrystal volume. This virtual test sample (VTS) can be probed to determine the average response of the polycrystal. The desire to obtain isotropic moduli imposes attributes on the VTS. The grains should be equiax and the crystal orientation distribution function should be random. For these simulations, a cube, 300 {micro}m on a side, was discretized with 1 million …

The 116-F-16 waste site is the former Pacific National Laboratories (PNL) Outfall, used to discharge waste effluents from the 100-F Experimental Animal Farm. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.

This project focused on the use of Logistical Networking technology to address the challenges involved in rapid sharing of data from the the Center's gyrokinetic particle simulations, which can be on the order of terabytes per time step, among researchers at a number of geographically distributed locations. There is a great need to manage data on this scale in a flexible manner, with simulation code, file system, database and visualization functions requiring access. The project used distributed data management infrastructure based on Logistical Networking technology to address these issues in a way that maximized interoperability and achieved the levels of performance the required by the Center's application community. The work focused on the development and deployment of software tools and infrastructure for the storage and distribution of terascale datasets generated by simulations running at the National Center for Computational Science at Oak Ridge National Laboratory.

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This report discusses the District of Columbia (DC) Tuition Assistance Program, which provides scholarships for undergraduate education to DC residents ranging from $2,500 to $10,000. Originally, the program was limited to providing scholarships for attending public higher education institutions in Maryland and Virginia, but it was expanded to include public institutions nationwide in May 2000.

The utilization of high-power short pulse laser employing chirped-pulse amplification (CPA) for material processing and inertial confinement research is widely increasing. The performance of these high-power CPA laser system continues to be limited by the ability of the pulse compression gratings to hold up to the high-average-power or high-peak-power of the laser. Pulse compression gratings used in transmission and fabricated out of bulk fused silica have intrinsically the highest laser damage threshold when compared with metal or multilayer dielectric gratings that work in reflection. LLNL has developed processing capability to produce high efficiency fused silica transmission gratings at sizes useful to future Petawatt-class systems, and has demonstrated high efficiency at smaller aperture. This report shows that fused silica diffraction exhibiting >95% efficiency into the -1 diffraction order in transmission (90{sup o} deflection of the incident light, at an incidence angle of 45{sup o} to the grating face). The microstructure of this grating consisted of grooves ion-beam etched to a depth of 1.6 microns with a pitch of 0.75 microns, using a holographically produced photoresist mask that was subsequently stripped away in significance to the fabrication of the small scale high efficiency grating was the development of the processing technology and …

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This report provides brief descriptions of the budget volumes and related documents, togethe with internet addresses