Peter Wayner

May. 11, 2012

Disguising Secret Messages, In a Game of Spy vs. Spy

Steganographic techniques allow a message to be hidden inside a more ordinary looking photo, video, or text.

code, cryptography, security, privacy, al quaeda, terrorism, tsa

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Michael Pollan Talks Plants and Food

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Ira Asks: How Do They Make Eyeglasses?

You deliver your prescription to an optician, and they return with a pair of eyeglass lenses tailored precisely to your personal vision quirks. But how?

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