Nik Wallenda walks across Niagara Falls 0
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Nik Wallenda is hoisted up to his wire to begin his walk across the brink of Niagara Falls on June 15, 2012. (QMI Agency)
Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario, June 15, 2012. (REUTERS)
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