It's the same base photo. See the red thing in the middle? The one in the beginning of this post is cropped (note you can't see the buildings in the background on the first one)...
So is the person that is holding the Get out of Iraq sign that is in the very front on one pic and in the middle on the other pic the same person? Or are those two different signs? I know these could have been photos taken minutes apart and crowds move around and move their signs around. But there just seems to be so many more people and signs in the foreground on one pic and not the other.