Every war and its aftermath is fought on two fronts. One front is where human life is destroyed by shot and shell, but the battlefield is not always where the winners and losers are determined. The other front belongs to reporters, photographers and pundits, who wage war with words and images. Through observation, selection and interpretation, the will of the people is wrought. Julius Caesar knew exactly what he was doing when, returning to Rome triumphant, with great fanfare made the great gesture of turning down the crown. Mark Anthony, his talented public-relations flack, supervised the spin. All roads led...