There is an estimated 2.5 trillion dollars of IOU's in a file cabinet that are non-negotiable Treasury bonds to cover the criminal activity.
To fix SS, just pay back all of the surpluses that have been stolen from the SS system.
Also, a non-negotiable bond is worth nothing because it can't be sold, traded or anything. Although it could be used in an outhouse instead of a Sears catalog.
The 2037 date is bogus. SS is a pay as you go system. Once SS goes permanently in the red in 2016, i.e., beneftis exceed revenue, the shortfall must be made up by the General Fund thru the redemption of the non-market T-bills in the SSTF, which is an unfunded liability and the reason why the SSTF is included in the national debt under Intragovernmental Holdings.