Five things you should know about Social Security

Stephen Goss is the numbers guy at the Social Security Administration. He’s the program’s chief actuary, and as such a font of knowledge about the ins and outs of Social Security’s retirement and disability programs.

Social Security is the country’s most universal social insurance program – it covers 86 percent of the population over age 65, as well as some younger people. But the program’s complexities are not so widely known.

To address that, the Social Security Administration helpfully publishes an annual “Fast Facts & Figures” guide, which highlights key features and trends. The new 2013 edition yields a number of interesting factoids you might not know about Social Security, but should. I talked with Goss and other experts about some of them for my column today at Reuters Money.