CBO chief Donald Marron, a month ago : "[T]he message I would send is that we've gone from a period in which the fiscal deficits we were running in this country were large and not sustainable if they had persisted, to a situation in which, at least now and for next year, for several years going forward, deficits appear to be in a range that they're sustainable.” GAO, today: "GAO’s current long-term simulations continue to show ever-larger deficits resulting in a federal debt burden that ultimately spirals out of control. The timing of deficits and the resulting debt build up varies depending on the assumptions used, but under either optimistic (“Baseline extended”) or more realistic assumptions, current fiscal policy is unsustainable."