For reading on the flight home, I picked up a copy of Robert Kaplan's Soldiers of God: With Islamic Warriors in Afghanistan and Pakistan. I didn't stop to think about the fact that it would cause the prune-faced harpy across the aisle to stare uncomfortably at the cover of my reading material from climb-out to short final. (Or maybe it was the business card with the silhouette of a pistol that I was using for a book mark...)
Back during the Soviet occupation of Afghanistan, Kaplan, an expat American Jewish reporter, went "inside" more than once, running around the hills with the muj, listening to their stories and getting dysentery. And some fascinating stories they were, too.
Excellent book to have handy the next time someone starts up with the old "America created the Taliban to fight the Soviets" nonsense. Not that they'll listen to what you say, but it fills the hand nicely and could be used for an impromptu beat-down.