Plastic: The Three Laws Of Robotics: Kill! Kill! Kill!

"Asimov, ever the optimist, proposed that any intelligent robots be guided by three simple, and almost foolproof, laws that would insure that we could all get along (and that the humans would stay on top). The very first rule: Robots couldn't hurt a human, or allow a human to come to harm. Unfortunately, he didn't consult the Pentagon."

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Robots will make excellent masters. I look forwards to being a coppertop.