Exclusive: Petraeus' Sectarian Death Count Methodology Revealed

By Spencer Ackerman - September 21, 2007, 4:44PM

In the debate over the surge, there have been a number of questions raised within the government about an important metric for understanding whether the U.S. military's strategy is succeeding -- how Multinational Force-Iraq calculates sectarian violence.

Earlier this month, David Walker of the Government Accountability Office testified that he could not "get comfortable" with General David Petraeus' methodology for determining sectarianism, considering it too inferential to be reliable. His report, echoing objections from senior intelligence officials, instead tabulated the pace of attacks on civilians and found the surge didn't appear to have a significant effect on civilian-targeted violence. However, relying on data interpreted through the MNF-I methodology, Petraeus testified that sectarian violence had fallen in Iraq to mid-2006 levels.