Social security has proven to be one of the most successful programs in the United States. No other program has done more to transform old age or to protect family incomes against economic risks arising from the disability or death of a working family member. Polls consistently show strong support for Social Security, but these same polls also show that the public, especially the young, is skeptical about whether Social Security will be able to meet its obligations. The program's harshest opponents call it a "Ponzi scheme." Arguing that the young will be left "holding the bag," they call for...