U.S.

Associated Press
Nik Wallenda greets fans after inspecting the wire prior to his walk across Niagara Falls in Niagara Falls, N.Y., Friday, June 15, 2012. Wallenda will attempt what nobody has done before: A high wire walk directly over the precipice at Niagara Falls and 190 feet (58 meters) above the churning torrent below.  (AP Photo/David Duprey)

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