If the killing of Osama bin Laden were a Hollywood murder mystery, the shootout scene in Abbottabad would be followed by the unveiling of the sponsor who arranged for the al-Qaeda safe house. Is it the Pakistani intelligence officer who appears early in the movie to assure his U.S. counterparts that he is fully committed to bringing bin Laden to justice? Is it the Saudi construction magnate who owes several major favors to the bin Laden family? Or perhaps it’s the U.S. embassy official who, it might turn out, believes that Osama is more useful alive than dead — until finally, he is useful no longer.