On the last day of October, a day that had loomed large on the calendar of those who hope for eventual negotiated disarmanent, the U.S. and Britain stopped tests of nuclear weapons. But most of the hopes had already gone glimmering before Russian threats that the U.S.S.R would go right ahead testing nuclear weapons—forcing the U.S. and Britain to resume.
Since the test stoppage came after an eleventh-hour series of small-weapons shots at the Atomic Energy Commission's Nevada Proving Grounds (see below), it brought no immediate shutdown of nuclear-weapons development. But the...