I'll bite with 3 things that just don't match up in my rather simplistic, apparently unpublished (at least in economics) mind:

1. I thought all CBO estimates had the Bush era tax cuts disappearing after this year. Why are they still there and still expanding as if the revenue is still being foregone?
2. How is an economic downturn still a valid element in the future, especially 10 years? Hell, how is it even valid now? Just because you took in less revenue (taxes) than was projected doesn't (IMO) justify it as a category. But once you've missed the revenue, are you going to continue to say, "Well, before the recession, we were projecting $XX trillion in revenue, so if we're not going to hit is it in the future, it must be because of the downturn." Um, most governments cannot get their revenue estimates right within plus-minus 5% most years (it seems - I'm probably exaggerating a touch), due to a wide range of factors, so why is this even in there?
3. And as previously noted, how are the Iraq and Afghanistan wars straight line ongoing expenses, especially when combat forces (higher per soldier costs) are now effectively out of Iraq (yes, still over 50k remaining) and Afghanistan drawdown purportedly begins next year? Those costs will certainly be going down.