If you survey informed Americans, you will hear Pakistanis described as duplicitous, paranoid, self-pitying and generally infuriating. In turn, Pakistanis describe us as fickle, arrogant, shortsighted and chronically unreliable.

Neither country’s caricature of the other is entirely wrong, and it makes for a relationship that is less in need of diplomacy than couples therapy, which customarily starts by trying to see things from the other point of view. While the Pakistanis have hardly been innocent, they have a point when they say America has not been the easiest of partners.