Excerpt: There is not just one good blueprint for fixing Social Security. .... What's more, the best of these blueprints do not require raising tax rates for workers even though the U.S. public pension tax, 12.4 percent shared by employer and employee, seems achingly low to outsiders. The first such blueprint involves benefit formulas. Under the current system, retiree benefits are indexed to prices. They also are linked to the average wage in America during the years the retiree worked.  MORE >>