The idea of negative CAPTCHAs is not to ask a user to proof that he is human, but reveal that a spam robot is a bot.

这个消极的CAPTCHA的主意，不是去让用户证明他是一个人，而是让一个机器人证明他是个机器人。

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No, I am not suggesting using a bot or having autoresponders.

哦不，我不建议使用机器人或者自动回复。

youdao

The recent FBI investigation targeted American bot-herders with mainly American victims. But in plenty of countries, running a botnet is either not illegal at all, or can be done with impunity.

FBI最近的调查针对的是主要牵涉美国受害人的美国“僵尸牧人”，但在许多国家，运行“僵尸网络”或者根本不违法，或者不会受到惩罚。

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The standout product here is the HOM-BOT, a sort of souped-up Roomba, that not only can direct itself, but also comes with some interesting data and camera visualization tools you can access through your smartphone.

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