Iraq War May Cost US $1 Trillion

Given the chaotic nature of war and the complexities of government accounting, it’s pretty much impossible to come up with a hard number. And as soon as you come up with one, someone will come along and challenge what you’ve chosen to include of leave out.
When economists or financial analysts make estimates like these, they often take one of two approaches: “bottom-up” or “top-down.” In a bottom-up estimate, you’d try to add up all the individual costs on your list of war-related expenses: everything from the preparation of a...
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