i have to agree with this guy i saw on tv several days ago. if we really really wanted his ass, and that's it, we could have him right now. there are other issues at hand which are being done while we "find" him.
i dont subscribe to conspiracy theories, but i think there is a lot more going on than is obvious. if we nab him now, many countries may just say "ok, you got him, go home". by continuing the search, we are able to get more done.
just a thought.