World: CAUGHT BETWEEN THE BLOCS

EUROPE once again is built of blocs. They had never, of course, tumbled down quite so completely as many of the West's optimistic exponents of detente had supposed. Last week, as the U.S. and Soviet Foreign Ministers addressed the United Nations' General Assembly, each enjoined the other not to intrude on his country's sphere of influence. Secretary of State Dean Rusk stressed the U.S. resolve to protect West Germany and West Berlin from aggression. Soviet Foreign Minister Andrei Gromyko emphasized the Soviet Union's determination to retain its hold on Eastern Europe and warned...