It's only a problem if we can't service the debt. Consider the federal government debt. What is almost never discussed is the value of FedGov assets. What if all FedGov land were sold? I haven't done the math, but I bet it would take some of the scare out of the dreaded National Debt.
The main number to watch is the tax rate. Keep it low, and fiscal restraint will follow.
We could probably sell off New Mexico and Arizona to the Mexicans, the land is 90% gov owned anyway, or so it seems.
They could throw in Baja and it looks like a pretty good deal.
At least McCain and Richardson would represent some country other than the USA and that seems to be their agenda anyway.
We could run up the debt some more and eventually sell them Baja and Southern California.
I guess Colorado and Utar could be next...but if they try to sell Texas...we'll just go solo.