But (as Stein pointed out in the Committee), every dollar Social Security invests privately, instead of lending to the Treasury (as happens now), is an extra dollar the government must borrow from private capital markets to finance the national debt.
Social Security isn't allowed to invest money privately.
mnli hypothesis: Social Security isn't allowed to invest money privately. premise: But (as Stein pointed out in the Committee), every dollar Social Security invests privately, instead of lending to the Treasury (as happens now), is an extra dollar the government must borrow from private capital markets to finance the national debt.