IMAGE DISTRIBUTED FOR DISCOVERY COMMUNICATIONS - Preacher Joel Osteen, left, leads prayer with Nik and Erendira Wallenda ahead of Nik&#39;s 1400 foot walk across the Grand Canyon for Discovery Channel&#39;s Skywire Live With Nik Wallenda on Sunday, June 23, 2013 at the Grand Canyon, Calif. &#40;Tiffany Brown&#47;AP Images for Discovery Communications&#41; <span class=meta>(Photo&#47;Tiffany Brown)</span>
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