[Excerpt] This CRS report focuses on the Chilean individual retirement accounts system. It begins with a description of the U.S. Social Security policy debate, along with a brief comparison of Chile and the United States. Next, the report explains what Chile’s individual retirement accounts system is and how it works. The pension reform bill sent to the Chilean Congress for debate in 2007 is also discussed. The report does not address other components of Chile’s social security system, such as maternity, work injury, and unemployment.