A few years ago, I attended a popular exhibition called "The Price of Freedom" at the venerable Smithsonian Institution in Washington. The lines of ordinary people, mostly children shuffling through a Santa's grotto of revisionism, were dispensed a variety of lies: the atomic bombing of Hiroshima and Nagasaki saved "a million lives"; Iraq was "liberated [by] air strikes of unprecedented precision". The theme was unerringly heroic: only Americans pay the price of freedom.