Nik Wallenda was ‘working for every single foot’ in Grand Canyon walk

(Photo: Tiffany Brown / AP for Discovery / AP)

Daredevil Nik Wallenda had prepared for all types of scenarios in his high-wire walk across a section of the Grand Canyon on Sunday, but he had no idea the two-inch-thick steel cable would be moving so much when he stepped out on it.

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(Source: nbcnews.com)