John Lewis Gaddis had written four previous books on the Cold War by the time he published We Now Know - so the main thrust of his new work was not so much to present new arguments as to re-examine old ones in the light of new evidence that began emerging from behind the Iron Curtain after 1990. In this respect, We Now Know can be seen as an important exercise in evaluation; Gaddis not only undertook to reassess his own positions - arguing that...