But the main proposals embraced by Democrats and Republicans with equal mindlessness, consist of rearranging bureaucratic wiring diagrams.

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Terry Morgan, a former boss of Tube Lines, used to describe how his engineers had spent months checking wiring in tunnels and drawing circuit diagrams from scratch.

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Combining step-by-step instructions and diagrams, the magazine described wiring a "timed circuit as it is simple" and using small nails as shrapnel.

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