There are legitimate differences of opinion about the war, but they don't include Kerry's silly debater's points. On the one hand, the Tora borer drones that Bush "outsourced" the search for Osama bin Laden to the Afghans, though at the time he supported it ("It is the best way to protect our troops," he said in December 2001. "I think we have been doing this pretty effectively."). But, on the other, he claims he's going to outsource Iraq to the French and the Germans, though neither of them wants anything to do with it.
As for this Bush-failed-to-get-bin-Laden business, 2-1/2 years ago I declared that Osama was dead and he's never written to complain. There's no more evidence for his present existence than there is for the Loch Ness monster, which at least does us the courtesy of showing up as a indistinct gray blur on a photograph every now and again. Osama is lying low because he's in no condition to get up.
But, even if he weren't, that's a frivolous reductive way of looking at this war. He's not a general or head of state; he can't sign an instrument of surrender, and make all the unpleasantness go away. The enemy is an ideology that appeals to various loose groupings from the Balkans to Indonesia, as well as to entrepreneurial free-lancers like the shooter who killed two people at LAX on July 4, 2002. If Kerry's oft-repeated "outsourcing Osama" crack is genuinely felt, it shows he doesn't get this war. And, if it's just cheapo point scoring, it's pathetic.