The executive summary is that both sides are using various statistics to either to show progress in Iraq or that there isn't progress. It ends with the line:
"So is the surge working? The short answer is that no one can know for certain because statistics only tell a small part of the story."
I found that to be a very odd concluding statement. Every example given in the story followed the same pattern: [the White Hhouse/Pentagon says X, but if you look at things it's really !X] (where X is some measure of success). Every example in the story (success in Anbar, success in Baghdad, total attacks, troop casualties, etc.) was a narrow statistic by the White House/Pentagon and a wider, more contextually revealing statistic showing the opposite. How could the conclusion of the story be essentially, "gee, I dunno which side is right."
Um... the story pretty much says the White House/Pentagon are spinning things their way, and looking deeper reveals they're hiding things from you. Just say so.