Imagine a busy city on a sunny winter’s day. A slick young thief pickpockets a well-dressed guy on the subway and gets away clean. The problem is that he doesn’t lift the guy’s wallet. Nope, he comes away with a well-used passport. Pissed off by the lack of profit, he notices a thin black button under the passport photo. When he presses it, the passport briefly hums and then . . . ?
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