In recent years, several Members of Congress have expressed interest in amending "Don't Ask, Don't Tell," (DADT) a legislation that requires those of homosexual orientation in the military to keep quiet about their orientation in order to maintain "morale, good order and discipline, and unit cohesion." At least two bills that would repeal the law and replace it with a policy of nondiscrimination on the basis of sexual orientation - H.R. 1283 and S. 3065 - have been introduced in the 111th Congress. This report provides a legal analysis of the various constitutional challenges that have been brought against DADT; for a policy analysis, see CRS Report R40782, "Don't Ask, Don't Tell": Military Policy and the Law on

This report provides a brief overview of the European Union's (EU) accession process; Turkey's path to EU membership; the impact of the Cyprus problem; and a review of the United States' interest in Turkey's future in the European Union.

This report describes the Understanding on Rules and Procedures Governing the Settlement of Disputes (DSU), which is the World Trade Organization's (WTO) means of resolving disputes arising under WTO agreements. The report includes criticisms of certain flaws in the DSU, as well as WTO Members' suggestions for improvement. The report also describes the Office of the United States Trade Representative (USTR), which represents the United States in WTO disputes. Also discussed are pieces of legislation that dictate procedures for specifically the United States in instances of WTO disputes.

The average tenure of Members of the Senate and House of Representatives at the beginning of each Congress has varied substantially since 1789. The purpose of this report is to provide a Congress-by-Congress summary of the average years of service for Senators and Representatives for the First through the 111th Congresses. The report contains a brief summary of some of the explanations by political scientists and others for the various changes in the average years of service.

From 1933 to 2009 (the 73rd Congress through the 111th Congress), the U.S. House of Representatives considered 107 contested election cases. The summaries of contested election cases contained in this report focus primarily on the nature of the contest and the disposition of the case. For more detailed information regarding each contest, it is important to consult relevant House records. This report examines only cases considered by the House of Representatives involving the question of whether a Member-elect was duly elected.

As Congress and the Administration considered new legislation to reduce the greenhouse gas (GHG) emissions that contribute to climate change over the last year and a half (a process that has now stalled), the Environmental Protection Agency simultaneously began to exercise its existing authority under the Clean Air Act to set standards for GHG emissions. The Administration has made clear that its preference would be for Congress to address the climate issue through new legislation. Nevertheless, it is moving forward on several fronts to define how the Clean Air Act will be used and to promulgate regulations. This report covers the steps that the Administration is taking on this topic.

This report is a summary of the assessments of the vital safety systems (VSS) that are administered under WCH’s system engineer program.