Most estimates of the time required for safe isolation of radioactive wastes from the biosphere range from 100,000 to 1,000,000 years. For such long time spans, it is necessary to assess the potential effects of geologic processes such as volcanism and tectonic activity on the integrity of geologic repositories. Predictions of geologic phenomena can be based on probabilistic models, which assume a random distribution of events. The necessary historic and geologic records are rarely available to provide an adequate data base for such predictions. The observed distribution of volcanic and tectonic activity is not random, and appears to be controlled by extremely complex deterministic processes. The advent of global plate tectonic theory in the past two decades has been a giant step toward understanding these processes. At each potential repository site, volcanic and tectonic processes should be evaluated to provide the most thorough possible understanding of those deterministic processes. Based on this knowledge, judgements will have to be made as to whether or not the volcanic and tectonic processes pose unacceptable risk to the integrity of the repository. This report describes the potential hazards associated with volcanism and tectonism, and the means for evaluating these processes.

This report is a review of the state-of-the-art for evaluating the potential impact of flooding on a deep radioactive-waste repository, namely, for predicting the future occurrence of catastrophic flooding and for estimating the effect of such flooding on waste containment characteristics. Several detrimental effects are identified: flooding can increase groundwater seepage velocities through a repository within the framework of the existing hydrologic system and thus increase the rate of radioactive-waste leakage to the biosphere; flooding may alter repository hydrology by reversing flow gradients, relocating sources of groundwater recharge and discharge, or shortening seepage paths, thereby producing unpredictable leakage; saturation of a vadose-zone repository during flooding can increase groundwater seepage velocities by several orders of magnitude; and flooding can damage repository-media containment properties by inducing seismic or chemical instability or increasing fracture permeability in relatively shallow repository rock as a result of redistributing in-situ stresses. Short-term flooding frequency and magnitude can be predicted statistically by analyzing historical records of flooding. However, long-term flooding events that could damage a permanent repository cannot be predicted with confidence because the geologic record is neither unique nor sufficienly complete for statistical analysis. It is more important to identify parameters characterizing containment properties (such as permeability, …

The potential impact of future geologic processes on the integrity of a deep, high-level radioactive-waste repository is evaluated. The following study identifies the potential consequences of surface erosion and deposition on sub-surface repository containment characteristics and assesses the ability to measure and predict quantitatively the rates and corresponding extent of these processes in the long term. Numerous studies of the magnitudes and rates of surficial erosion and deposition that have been used to determine the minimum allowable depth for a geologic repository (300 m - NRC Code of Federal Regulations, Part 60.122, Draft 10) are cited in this report. Measurement and interpretation of potential rates and extent of surficial processes in these studies involved considerable uncertainty, and the implications of this uncertainty on presently proposed repository siting criteria are addressed herein. Important concepts that should be considered when developing siting criteria to protect against deleterious effects arising from future erosion or deposition are highlighted. Erosion agents that could affect deep repositories are distinguished in this report so that their individual and combined impacts may be examined. This approach is recommended when evaluating potential repository sites in diverse environments that are susceptible to different agents of erosion. In contrast, agents of …

The four experimental through-tubes provided in the Experimental Gas Cooled Reactor will extend directly through the core of the reactor and penetrate both the upper and lower pressure vessel heads. Each tube is anchored in an upper head nozzle and the bottom end is allowed to slide in a lower head nozzle. This lower nozzle is basically a T'' section that provides bottom access to the through-tube and a side access for the piping which connects the throughtube to the experimenter's cell. Due to differential thermal expansion of the through- tubes relative to the reactor pressure vessel, vertical movement of the through- tube within the T'' section will be experienced. At the same time a horizontal thrust applied to each tube by thermal expansion of the piping to the experimental cell will result in metalto-metal contact between each tube and the lower T'' section. Tests were conducted on three types of bearing material proposed for use on the through-tubes and T'' sections to minimize galling which can be expected to occur. Stellite No. 12 has been demonstrated to be an adequate bearing material for the intended application. (auth)

Progress on the gas-cooled reactor program is reported. Separate abstracts were prepared for each of the 14 sections. (M.C.G.)

Report describing Carbon Capture and Sequestration (CCS), how it is supposed to work, why it has gained the interest and support of some members of Congress, and what some of the challenges are to its implementation and deployment across the United States.

Report that looks at the history and applications of the Lacey Act, which allows the U.S. to enforce the laws of other countries.

This report discusses the current state of Bahrain, which has undergone substantial political reforms since the late 1990s, but which still suffers from tension between the Shiite majority and the Sunni-led government. This report focuses particularly on Bahrain's relationship with Iran and with the United States.

The Air Force F-22 fighter, also known as the Raptor, is the world's most capable air-to-air combat aircraft. The administration wants to end F-22 procurement at 187 aircraft, and the administration's proposed FY2010 budget does not request funding for the procurement of additional F-22s in FY2010. The administration argues, among other things, that 187 F-22s will be sufficient in conjunction with other U.S. tactical aircraft. The issue of F-22 procurement has emerged as one of the highest-profile items of debate on the FY2010 defense budget. This report discusses both sides of the debate in detail.

This report analyzes developments in the Francophone West African country of Guinea since the military's seizure of power in December 2008, Guinea's relations with the United States, and U.S. policy in the wake of the coup. It also provides background on Guinean history and politics.

A letter report issued by the General Accounting Office with an abstract that begins "Employees at the Social Security Administration's (SSA) Region X--which covers Alaska, Idaho, Oregon, and Washington--expressed concern about the Region's equal employment opportunity (EEO) process for employment discrimination complaints. GAO was asked to (1) provide information for fiscal years 1997 through 2001 on the composition of the Region X workforce and for personnel actions such as promotions, awards, and adverse actions by EEO group; (2) describe the EEO complaint process in Region X and any changes to it; (3) assess whether the Region's process is consistent with federal regulations and related guidance; and (4) assess the familiarity with the EEO process of the Region's employees and their attitude toward it."

A letter report issued by the Government Accountability Office with an abstract that begins "Since its inception in 2003, the Department of Homeland Security (DHS) has faced numerous human capital challenges related to recruiting, retaining, and managing its workforce of nearly 171,000 employees. As requested, this report analyzes DHS's attrition, efforts to recruit and retain staff, use of external employees, and compliance with certain provisions of the Vacancies Reform Act, which requires agencies to report to Congress and the Comptroller General vacancies in certain presidentially-appointed positions requiring Senate confirmation. To conduct its work, GAO surveyed human capital personnel from DHS and its component agencies; analyzed federal personnel data files, Office of Personnel Management (OPM) human capital documentation, and relevant legislation; and interviewed key DHS officials."

A letter report issued by the Government Accountability Office with an abstract that begins "American workers increasingly rely on 401(k) plans for their retirement security, and sponsors of 401(k) plans--typically employers--have critical obligations under the Employee Retirement Income Security Act of 1974 (ERISA). When acting as fiduciaries, they must act prudently and solely in the interest of plan participants and beneficiaries. The Department of Labor (Labor) is responsible for protecting private pension plan participants and beneficiaries by enforcing ERISA. GAO examined: (1) common 401(k) plan features, which typically have important fiduciary implications, and factors affecting these decisions; (2) challenges sponsors face in fulfilling their fiduciary obligations when overseeing plan operations; and (3) actions Labor takes to ensure that sponsors fulfill their fiduciary obligations, and the progress Labor has made on its regulatory initiatives. To address these objectives, GAO administered a survey asking sponsors how they select plan features and oversee operations, reviewed industry research, conducted interviews, and reviewed related documents."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2003, 31 residents died in nursing home fires in Hartford, Connecticut, and Nashville, Tennessee. Federal fire safety standards enforced by the Centers for Medicare & Medicaid Services (CMS) did not require either home to have automatic sprinklers even though they have proven very effective in reducing the number of multiple deaths from fires. GAO was asked to report on (1) the rationale for not requiring all homes to be sprinklered, (2) the adequacy of federal fire safety standards for nursing homes that lack automatic sprinklers, and (3) the effectiveness of state and federal oversight of nursing home fire safety."

A letter report issued by the Government Accountability Office with an abstract that begins "Federal IT spending has risen to an estimated $79 billion for fiscal year 2011. To improve transparency and oversight of this spending, in June 2009 the Office of Management and Budget (OMB) deployed a public website, known as the IT Dashboard, which provides information on federal agencies' major IT investments, including assessments of actual performance against cost and schedule targets (referred to as ratings). According to OMB, these data are intended to provide both a near real-time and historical perspective of the performance of these investments. GAO was asked to (1) examine the accuracy of the cost and schedule performance ratings on the Dashboard for selected investments and (2) determine whether the data on the Dashboard are used as a management tool to make improvements to IT investments. To do so, GAO selected 8 major investments from 5 agencies with large IT budgets, compared its analyses of the selected investments' performance to the ratings on the Dashboard, and interviewed agency officials about their use of the Dashboard to manage investments."

A letter report issued by the Government Accountability Office with an abstract that begins "Given a large-scale organizational change initiative, such as the Department of Defense's (DOD) National Security Personnel System (NSPS), is a substantial commitment that will take years to complete, it is important that DOD and Congress be kept informed of the full cost of implementing NSPS. Under the Comptroller General's authority to conduct evaluations on his own initiative, GAO analyzed the extent to which DOD has (1) fully estimated total costs associated with the implementation of NSPS and (2) expended or obligated funds to design and implement NSPS through fiscal year 2006. GAO interviewed department officials and analyzed the NSPS Program Executive Office's (PEO), and the military services' and the Washington Headquarters Services' (hereafter referred to as the components) cost estimates and reports of expended and obligated funds."

A letter report issued by the Government Accountability Office with an abstract that begins ""

A letter report issued by the Government Accountability Office with an abstract that begins "The Securities and Exchange Commission (SEC) has taken some steps toward developing a conflict minerals disclosure rule, but it has not issued a final rule. For example, SEC published a proposed rule in December 2010 and has gathered and reviewed extensive input from external stakeholders through comment letters and meetings. SEC has also announced, on several occasions, new target dates for the publication of a final rule. In July 2012, SEC announced that the Commission will hold an open meeting in August 2012 to consider whether to adopt a final rule. According to SEC officials, various factors have caused delays in finalizing the rule beyond the April 2011 deadline stipulated in the act, including the intensity of input from stakeholders and the public; the amount of time required to review this input; and the need to conduct a thorough economic analysis for rule making."

A letter report issued by the Government Accountability Office with an abstract that begins "During fiscal year 2002, Medicaid--a program jointly funded by the federal government and the states--provided health care coverage for about 51 million low-income Americans. That year, Medicaid benefit payments reached approximately $244 billion, of which the federal share was about $139 billion. The program is administered by state Medicaid agencies with oversight provided by the Centers for Medicare & Medicaid Services (CMS) in the Department of Health and Human Services. Medicaid's size and diversity make it vulnerable to improper payments that can result from fraud, abuse, or clerical errors. States conduct program integrity activities to prevent, or detect and recover, improper payments. This report provides information on (1) the types of provider fraud and abuse problems that state Medicaid programs have identified, (2) approaches states take to ensure that Medicaid funds are paid appropriately, and (3) CMS's efforts to support and oversee state program integrity activities. To address these issues, we compiled an inventory of states' Medicaid program integrity activities, conducted site visits in eight states, and interviewed CMS's Medicaid program integrity staff."

A letter report issued by the Government Accountability Office with an abstract that begins "From 2004 to 2011, the total number of mental health records that states made available to the National Instant Criminal Background Check System (NICS) increased by approximately 800 percent—from about 126,000 to 1.2 million records—although a variety of challenges limited states’ ability to share such records. This increase largely reflects the efforts of 12 states. However, almost half of all states increased the number of mental health records they made available by fewer than 100 over this same time period. Technological, legal, and other challenges limited the states’ ability to share mental health records. To help address these challenges, the Department of Justice (DOJ) provides assistance to states, such as grants and training, which the 6 states GAO reviewed reported as helpful. DOJ has begun to have states share their promising practices at conferences, but has not distributed such practices nationally. By disseminating practices that states used to overcome barriers to sharing mental health records, DOJ could further assist states efforts."

A letter report issued by the Government Accountability Office with an abstract that begins "Congress and presidents require agencies to review existing regulations to determine whether they should be retained, amended, or rescinded, among other things. GAO was asked to report the following for agency reviews: (1) numbers and types completed from 2001 through 2006; (2) processes and standards that guided planning, conducting, and reporting; (3) outcomes; and (4) factors that helped or impeded in conducting and using them. GAO evaluated the activities of nine agencies covering health, safety, environmental, financial, and economic regulations and accounting for almost 60 percent of all final regulations issued within the review period. GAO also reviewed available documentation, assessed a sample of completed reviews, and solicited perspectives on the conduct and usefulness of reviews from agency officials and knowledgeable nonfederal parties."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2002, GAO reported that the Centers for Medicare & Medicaid Services (CMS) needed to improve its communications with providers who deliver medical care to beneficiaries. GAO reported that 85 percent of the responses it received to 61 calls made to call centers operated by Medicare carriers--contractors that help manage the Medicare program--were incorrect or incomplete. GAO also found that CMS's primary oversight tools were insufficient to ensure accuracy in communication. GAO was asked whether call centers now provide correct and complete information to providers. GAO (1) reviewed carriers' effectiveness in providing correct and complete responses to policy-oriented telephone inquiries and CMS's efforts to improve communications with providers and (2) evaluated CMS's efforts to provide oversight of carrier call centers."

A chapter report issued by the General Accounting Office with an abstract that begins "The collection of outstanding criminal debt has been a long-standing problem for the federal government. Since October 1985, as reported in the U.S. Attorney's statistical reports, the balance of outstanding criminal debt has grown from $260 million to more than $13 billion. Currently, the receipting of collections and recordkeeping for criminal debt is primarily the responsibility of the U.S. Courts, while the Department of Justice is responsible for collecting criminal debt. This report reviews (1) the key reasons for the growth in reported uncollected criminal debt; (2) whether adequate processes exist to collect criminal debt; and (3) what role, if any, the Office of Management and Budget (OMB) and the Department of the Treasury play in monitoring the government's collection of criminal debt. GAO found that four key factors have contributed to the significant growth of uncollected criminal debt. These factors are (1) the nature of the debt, in that it involves criminals who may be incarcerated or deported or who have minimal earning capacity; (2) the assessment of mandatory restitution regardless of the criminal's ability to pay, as required by the Mandatory Victims Restitution Act …

A letter report issued by the General Accounting Office with an abstract that begins "This report reviews the coordination efforts involved in foreign counterintelligence investigations where the Foreign Intelligence Surveillance Act has been or may be employed. The act established (1) requirements and a process for seeking electronic surveillance and physical search authority in national security investigations seeking foreign intelligence and counterintelligence information within the United States and (2) the Foreign Intelligence Surveillance Court, which has jurisdiction to hear applications for and grant orders approving Foreign Intelligence Surveillance Act surveillance and searches. GAO found that coordination between the Federal Bureau of Investigation (FBI) and the Department of Justice's (DOJ) Criminal Division has been limited in those foreign counterintelligence cases in which criminal activity is indicated and surveillance and searches have been, or may be, employed. A key factor inhibiting this coordination is the concern over how the Foreign Intelligence Surveillance Court or another federal court might rule on the primary purpose of the surveillance or search in light of such coordination. In addition, the FBI and the Criminal Division differ on the interpretations of DOJ's 1995 procedures concerning counterintelligence investigations. In January 2000, the Attorney General issued additional procedures to …