After four years of unceasing war, Japan prepared anew for war. Floodlights cut white arcs through Tokyo's dark as work on inadequate air-raid shelters went on around the clock. Men were at work in one corner of the Palace grounds. No one could see what they were doing, but a good guess was that they were building an air-raid shelter for the Emperor. Laborers studded Japan's other big cities with antiaircraft guns.
No precautions had been necessary in the four years of war against almost wingless China. But Tokyo's seven millions live in an area the size of Chicago;* half their million...