When the United States went to war in Afghanistan—the first US war of my adult life—I thought it was probably the right move, unaware that this war would still be going nearly two decades later. My eight-year-old son once asked me, “Has America ever not been at war?” and I told him that for about half my life, it was not, but for all of his life, it had been. He asked if America would be at war for the rest of his life. I thought of wars that break out within national borders, and wars that come from computers and aren’t called wars, and undeclared wars born of unprecedented treason. I said I
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