Good points but, unfortunately, there is no way it can be done as things now stand. If you look at the case in the south-east, the border into North and South Waziristan is wide open and the Pakistani Government has no hope of being able to seal their side. One totally radical suggestion, that I know the Pakistanis won't accept, is to return Waziristan to Afghanistan (they used to be Afghan provinces and are dominated by the Pashtun tribe). The key to "winning" in Afghanistan, IMHO, lies to a large degree in recognizing that the current borders are illusions and operating on that recognition.
We lost the best chance for "winning" when the Loya Jirga met in 2003 and the king was shuffled aside - Karzai doesn't have the same personal authority, either moral or organizational. And, while I do respect him for a lot of the work he has done, he is not going to be able to unify the country as long as he is viewed as a puppet for the West. A victory in Afghanistan must be a victory by Afghans along the lines of the 2nd Afghan war (1878-1881).
Marc
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