James Robbins at The Corner asks that question and it’s a good one. As he points out (emphasis mine):
The number of daily attacks in Iraq has fallen almost 95% from levels a year ago. Also of note, the murder rate in Iraq in November was 0.9 per 100,000 people. That is lower than the rate from before Saddam was overthrown. For those keeping score, the 2007 murder rate in the US was 5.9 per 100,000. Can we declare victory yet?