Yeah I read that in a novel too. It’s a common idea. | Hacker News

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jamiek88 on Feb 27, 2023 | parent | context | favorite | on: The Camera-Shy Hoodie

Yeah I read that in a novel too. It’s a common idea.

beardedwizard on Feb 27, 2023 [–]

Because spies actively use the technique and it's routinely discussed in that setting.

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