Yes, several of us have pointed this out. If the film was made before he went to Iraq, why? How would Moore even know about him? If he made statments in support of the war, then Moore didn't use it. But why make a 20-minute interview with someone who supported the war? And if Berg was really against the war, then his motives for going to Iraq again come under question.
Lots of questions arise from the story, and I am not satisfied to let this drop with no comments.