When the surge was first working last summer, public opinion at first did not yet recognize the progress.
Now the public thinks the war on terror is being won, and the public's opinion supports the view that the situation in 6 months inside Iraq will be better.
Yet public opinion is now divided on whether in the long run the war in Iraq will be considered worth the cost. Not yet, anyway.
Each component of opinion on the war drags along related opinion regarding the war eventually.
If we nail down this accumulating victory in Iraq, in time we will think the war in Iraq was worth it.