"we'll bankrupt our government"
If that happens so much of the world will be dragged down with us, it's in everyone else's interests to keep us afloat, too. We can think of our debts as a burden on our children, but what's also happening is that other countries are puming cash into our economy so that we might not crash.
Because when we average Americans stop spending money, so many many many people around the world will find themselves out of work.
We all have a vested interest in seeing that this doesn't happen.

"I have no illusions that if we pull out of Iraq somehow the money we're spending on the military will all of a sudden shift to civilian health insurance. That's fanciful."
curm: No matter what happens, leaving Iraq will not allow monies spent their to make a "sudden shift" anywhere. It was all borrowed and will then have to be paid back. Heads you lose, tails you lose.
Lucy: you confuse this bush junta with "the US"
To get an understanding about the reigning neocon politics here in the good ole U.S. you merely have to read the white papers that are available at any of the neocon think tanks.
I did a post at another board and had to ask what the rest of the users were afraid to ask. What organizations do the neocon War Hawks belong to? Answer that question and you have your answer.