And in a hotel restaurant, beneath soft music and the smell of cardamom tea, the people who had nearly performed for history finished dessert and planned where to go for drinks.… The note landed in the hotel trash can face-up, its neat Urdu and English lines already beginning to curl from the humidity. “This is a singing performance of Islamic mysticism (Sufism), a symbol of Pakistan. Please enjoy!” Samina stared at it for a moment, then checked her reflection again in the dressing-room mirror of Islamabad’s Serena Hotel. Her makeup was still perfect. Her green silk shawl still sat exactly right over her shoulder. She looked like the host of an international peace ceremony. Unfortunately, there was no ceremony anymore. Outside, beyond the heavy curtains and polished marble hallways, the diplomatic summit that had been planned for weeks had quietly collapsed in the way such things often did—not with shouting, but with pho...