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No, but we do have to look to historical evidence for wild claims about imminent nucleur warfare or the like. It is * possible * that a maniac is waiting outside my house, right now, to blow me up. Unlikely, but possible. However, I don't spend my time worrying about it because there is no evidence...
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No country with a nuclear weapon has ever been invaded. The only 'countries' to ever use them have been those with massive governments inlcuding those supposedly 'civilised' (democratic!) ones, which just shows how completely brainwashed people are into thinking governments actually protect...