On the first day a U.S. spokesman noncommittally described the talks as "businesslike." Next day they were "intensive." By the third day they were "worthwhile." In the artfully nuanced language of diplomacy, that signals progress. Indeed, a tender springtime bloom seemed to have returned to U.S.-Soviet relations as Secretary of State Cyrus Vance and U.S.S.R. Foreign Minister Andrei Gromyko huddled last week in Geneva. Their meeting spanned a diplomatic climate more congenial to detente than the chill that had engulfed Vance's abortive mission to Moscow at the end of March.
In...