It's late on a Tuesday afternoon in downtown Athens, the heat of summer temporarily lifted by a blustery wind as overhead, clouds gather and a crack of thunder splits the air. In front of the Arch on the University of Georgia's North Campus, a steady roar of cars and buses mixes with the chatter of students bustling by. Meanwhile, on city streets in other parts of the world, the thunderous explosion of bombs rips through the lives of people going about their daily lives, followed by the chaos of screams and wails, horror and pain. Amid all this noise, it...