It is time for the curtain to fall on the era of unrestrained summitry.
Let the applause swell for past dramas: Ike before worshipful masses in Seoul; Kennedy firm-jawed at the Berlin Wall; L.B.J. staring down Aleksei Kosygin at Glassboro; Nixon clinking glasses in the Great Hall with Chou Enlai, then eating Wheaties in the Kremlin; Ford grinning beneath his fur hat in the snows of Vladivostok with Leonid Brezhnev. Worthy acts. But the world changes.
While summitry was a necessity at times in the postwar decades, its ease and electronic entertainment value have...