Nicholas D. Kristof: The Iraq war is now going better than expected, for a change. Most critics of the war, myself included, blew it: We didn't anticipate the improvements in security that are partly the result of last year's "surge." The improvement is real but fragile and limited. Here's what it amounts to: We'e cut our casualty rates to the unacceptable levels that plagued us back in 2005, and we still don't have any exit plan for years to come -- all for a bill that is accumulating at the rate of almost $5,000 every second!
