Not only do you have to find an excellent translator, one who works well in both languages and is a stylist to boot (or who can work in tandem with someone else, like the excellent Richard Pevear and Larissa Volokhonsky do in Russian), but the copy editing and proof reading take on a new layer of work.

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Now each layer of plastic is as thin as a sheet of copy paper, resulting in smooth printed prototypes.

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Applying an electric charge to the liquid crystals causes the molecules they are made up of to realign themselves, altering the transparency of that layer. (The screens of portable computers work in a similar way.) The result is that a high-resolution negative copy of the moving image is formed in the liquid-crystal layer.

ECONOMIST: Curtains for celluloid

The Veterans Affairs Department, perhaps the largest federal agency to make a big push for mobile devices, has settled on security at the application layer, a course that the largest potential federal buyer, the Defense Department, is unlikely to copy.

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