He sounds wishy washy. He needs to say why, specifically and forcefully.
Just why does he need to say why?
Can you not understand what would happen if he pulled up troops and left?
He would prove that America is only a Paper Tiger and the terrorists would be emboldened. He would prove our word means nothing, he would prove that the battle really was not needed or he would have completed the job.
Yet, if you need to be hand fed some little reason, just wait awhile, listen to the news from Iraq (not from the MSM), look at the events in the world, and maybe it will come to you.
The main thing - it is a lot safer on America to fight all terrorists over there. All can come on over and forget having to sneak into our country. We are ready for them there and it would not be a surprise attack.