We have subjected enormous Numbers of people to contact with these poisons, without their consent and often without their knowledge.

使众多的人接触有毒物质，却征得的同意，并常常将蒙在鼓中。

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In fact, they are often accessed without our consent.

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As Kashmir wrote, the company could have used that technique to automatically segment users into Facebook Groups, but would likely have incurred the same privacy wrath that Google faced when its Google Buzz trick exposed who users were most often chatting with without their express consent.

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