CRS Reports (Congressional Research Service) was established to provide members, committees and congressional staff with nonpartisan and objective research and analysis on all public policy issues.  Research divisions include: American Law, Domestic Social Policy; Foreign Affairs, Defense and Trade; Government and Finance; Knowledge Services; and Resources, Science and Industry.  Many CRS reports are updated at varying intervals, so it is always important to note the exact date of issuance rather than just the title and year of publication.