Guns or butter. Butter or guns. Can we have both? If not, which should come first? Consider it one of those chicken-and-egg conundrums of modern society. “Guns” is the stand-in for a well-funded military and “butter” for all the human goods, comforts, and needs of a society. Economists, politicians, and generals have long considered the balance of guns and butter. Wage too many wars, produce too many arms, and there won’t be enough money to keep a nation decently fed and comfortable. Produce too many consumer goods, meet everyone’s needs, and a nation might find itself ill-prepared and vulnerable in...