In times to come, the worst dangers to civilization may not come from clearly identifiable and accountable adversaries — who want to win an explicit, set-piece competition — as much as from a general democratization of the means to do harm. New technologies, distributed by the Internet and effectuated by cheaply affordable tools, will offer increasing numbers of angry people access to modalities of destructive power — means that will be used because of justified grievance, avarice, indignant anger, or simply because they are there.
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