...who evidently have never heard of Halabja or Ansar al-Islam. I don't think this study need be taken very seriously.
Well, presumably they meant following the first Gulf War, so Halabja (1988) wouldn't apply. But your second point is apt. Ansar al-Islam was a terrorist org, in Iraqi Kurdistan, JOINTLY RUN by al-Qaeda and Saddam's secret police, right up to the war. I never understood how the Senate Intel Committee, among others, ignored this in claiming there was NO "operational coordination" between al-Qaeda and Iraq. At least in Kurdistan there was.