HAPPENINGS like the Summer Olympics attract minute-by-minute saturation news coverage. Chronic dangers like the Arab-Israeli confrontation surge and subside in the headlines over long periods. New developments in medical practice often go forward subliminally until they are accepted or rejected. TIME's aim in approaching these subjects, as in all the fields it covers, is first to give an orderly and analytical account of events and trends. Beyond that, whether the basic story is familiar or a new discovery, we consider it our regular task to search out fresh facts and perspectives.
This week's...