LOOKING AHEADI’ve finally gotten around to reading “Imperial Life in the Emerald City,” and if you have the stomach for it, it’s a fantastic read with a lot of telling vignettes. The ways in which Paul Bremer and his merry band screwed up decision after decision in the crucial days after the fall of Saddam would provide a hilarious tale of arrogance, stubbornness, incompetence, and ridiculously