Deep into Malcolm Gladwell’s Talking to Strangers, his first book in six years, lies a precise arrangement of words that could function as a Rorschach test — a sentence that will strike you as reassuring if you love his best-selling books or exasperating if you don't.
Writing about Khalid Shaikh Mohammed, or KSM, the senior Al Qaeda official and alleged mastermind of 9/11 who was taken to CIA black sites and subjected to “enhanced interrogation techniques,” Mr Gladwell is careful to keep the reader on track: “But let us leave aside those broader ethical questions for a moment, and focus

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