Romeo Dallaire often told people that once, in the cool, misty, green hills of Rwanda, he looked evil in the eye and shook hands with the devil himself. That haunting allegory became the title of his wrenching memoir of the ill-fated 1994 UN mission in Rwanda. According to his publisher, Shake Hands with the Devil, The Failure of Humanity in Rwanda is "a story of betrayal, failure, naivete, indifference, hatred, genocide, war, inhumanity and evil." It is a gripping story of a clash among African politics, old colonial prejudices and big power indifference that left Dallaire and a handful of...