William Taubmans brilliant biography of one of the key figures of the Soviet Union is a study in contrasts -- how the boy from a peasant background rose to the heights of power; how a single-minded, ambitious political player survived twenty years under Stalin; how he opened up to the West after Stalins death and yet brought the world close to oblivion in the Cuban Missile Crisis. What emerges is a fascinating picture of a man constantly torn between benevolence and malevolence -- a man who made himself cultured and yet who could never really escape his image as a bullying country bumpkin (most famously demonstrated by his interruption of Macmillans speech to the UN in 1960 by banging