A bit of an embarrassment for Pakistan that Osama bin Laden should finally be found, living within minutes of Pakistan’s equivalent of West Point. Although President Obama was too tactful to say it, this cannot but raise the question of whether bin Laden was enjoying the protection of the top ranks of the Pakistani army. Or to put it another way, the Pakistani top brass is either exceptionally dozy or exceptionally duplicitous. The Americans have long harboured fears that the ISI – Pakistan’s intelligence service – was playing a double game, although more with the Taliban than al-Qaeda. But the top levels of the army were felt to be reasonably straight. Was that a mistake?