WHEN DICK CHENEY SAID, “Deficits don’t matter,” economists took that as proof of the economic illiteracy of the Bush administration. But it turns out there is a case to be made that Cheney was onto something.

On the deepest level, the vice president was echoing, in slightly exaggerated form, an idea put forward a few years ago by Irving Kristol, the Godfather of the neoconservatives who have had such a wide-ranging effect on Bush administration policy. Kristol wrote then, and still believes, that “We should figure out what we want before we calculate what we can afford, not the reverse.”