The C.I.A. and Pakistan's intelligence agency are working hand-in-hand to fight the Taliban—but that doesn't mean they trust each other. As American agents turn their attention away from Pakistan's ragged borderlands to its cities in an effort to find terrorists, they face the challenge of relying on local officials who don't always have the same goals in mind. The New York Times Thursday profiles these shaky relations. Sometimes the mistrust is smoothed over by a bottle of Johnnie Walker Blue Label whisky. Other times, the spooks are not so lucky.