Find the Cost of Freedom

and represent it with nifty graphics. These graphs of the costs of US wars were created by ProPublica (hat tip: M. Yglesias).
Adjusted for inflation, the Iraq war is the third most expensive in US history:But as a share of GDP it is a relatively small one:
(that is the share of GDP in the year the war costs peaked)
That is, because of economic growth, the US is a much richer country which can afford (financially, at least...) more of everything, including war.