From the press release:
While Social Security is best known as a retirement program, it is also irreplaceable life and disability insurance for young families, according to a new report released today by the non-partisan National Academy of Social Insurance (NASI).
About 6.5 million children under 18 – or nearly 9 percent of all U.S. children – received part of their family income from Social Security in 2005. They include 3.1 million children who themselves receive benefits as dependents of a deceased, disabled, or retired parent, and an estimated 3.4 million other children who do not themselves receive Social Security, but live with relatives who do.
▪ Fact Sheet