According to security elites, revolutions in information, transport, and weapons technologies have shrunk the world, leaving the United States and its allies more vulnerable than ever to violent threats like terrorism or cyberwar. As a result, they practice responses driven by fear: theories of falling dominoes, hysteria in place of sober debate, and an embrace of preemptive war to tame a chaotic world.

Patrick Porter challenges these ideas. In The Global Village Myth, he disputes globalism's claims and the outcomes that so often waste blood and treasure in the pursuit of an...