So asks Newsweek's cover, which features a full-length photo of the prime minister his people voted the greatest Briton of them all. Quite a tribute, when one realizes Churchill's career coincides with the collapse of the British empire and the fall of his nation from world pre-eminence to third-rate power. That the Newsweek cover was sparked by my book "Churchill, Hitler and The Unnecessary War" seems apparent, as one of the three essays, by Christopher Hitchens, was a scathing review. Though in places complimentary, Hitchens charmingly concludes: This book "stinks." Understandable. No Brit can easily concede my central thesis: The...