The General's office's report said that the projections would have been accurate but for the USPS earning a higher than expected amount of interest on their ass

The General's office's report said that the projections would have been accurate but for the USPS earning a higher than expected amount of interest on their assets. To recalibrate based on this windfall seems foolish to me. If you take the view as I do that an institution ought to make choices that will keep it around for hundreds of years, spending money conservatively enough to afford promises made to one's employees becomes a wise choice instead of a suspect decision. That said, I do agree with the General that the USPS is unnecessarily entangled with the US government, and would be able to adequately fund its defined-benefit obligations without legislation (as private companies do), and also regulate overpayments and underpayments better without relying on the GAO or Congress.