On April 3rd the National Academy of Social Insurance (NASI) held a Capitol Hill briefing on “Why Are More People Claiming Disability Insurance and What Should Be Done About It?” The forum presented perspectives on the causes and consequences of changes in the Social Security Disability Insurance caseload. Speakers discussed past trends in disability claims; differing perspectives on why the rolls have grown; implications for the effectiveness of the program; and implications for the economic security of people with disabilities. Presenters were Stephen C. Goss, Chief Actuary, Social Security Administration; Lisa Ekman, Senior Policy Advisor, Health and Disability Advocates; and David Stapleton, Director, Center for Studying Disability Policy, Mathematica Policy Research. Discussants were Marty Ford, Director of The Arc’s Public Policy Office, and Tony Young, Senior Public Policy Strategist, NISH. View presentations and CSPAN video of the event on NASI’s web site.