SS is a modified insurance/Ponzi scheme except that contributions are mandatory.
This is the Ponzi part. To be viable, SS needs an ever increasing number of contributers. But the ratio of contributors to recipients has been decreasing because of a decreasing birth rate and the increase in longevity. The wages of the contributors are also decreasing.
This is the insurance part. The consequences of the so-called payroll tax break will come in to play when those who want them today will find that, because their contributions were reduced today, and their checks will be that much smaller tomorrow. What you get out when you are eligible to collect is based on what you've put in while you worked. Even the libtards in Congress are waking up to this fact.
The original IRA under Reagan, with the income tax exempt contributions, was the best plan to come down the pike.