For much of his half-century career in the House of Commons, Tony Benn has been the most loved and loathed man in British politics. He has been idolized by the left, and reviled with equal measure by the Westminster establishment, not least by New Labour. Once tipped to lead the Labour Party, Benn's growing disillusionment with what he regarded as the "democratic deficit" infecting politics, reinforced his resolve to continue playing the role he...