"Somebody knew. Who knew?" Did Winston Churchill lure Japan into attacking Pearl Harbor as a cynical ruse to pull the United States into the war against the Nazis to save England? Did he deliberately weaken the defenses of Singapore and Hong Kong to convince the Japanese to jump? Did he even run a double spy to feed information to Tokyo? John Bell Smithback examines the evidence in a shocking new assessment of the origins and backstory of one of the turning points of the twentieth century-...