ALL OVER THE COUNTRY, PEOPLE ARE SINGING-climbing to the rooftops, to the bridges, to lamppost and road sign, steeple and water tower, singing gloriously, triumphantly, tirelessly-and dying. When it's all over, Manhattan has to rebuild a new society, and it seems to be having a lot of help in the form of angles, gods, and walking myths. What's real? And how much does it matter?