"... Any Social Security plan should include voluntary contributory annuities, by which individual initiative can increase the annual amount received in old age. ... Government funding ought to be ultimately supplanted by self-supporting annuity plans."
FDR didn't get his way then.
This needs repeating often. SS was never intended, by FDR, to last.
Most of these articles, even the positive ones, fail to consider compounding. That makes the privitization picture much brighter.
You might enjoy this: http://FreedomKeys.com/gummint.htm#g=sfallacy