Costs for wire walk sky-high

Nik Wallenda prepares to walk a tightrope as part of his training. As a 6-year-old at Niagara Falls with his parents, he pictured walking a tightrope over the raging, whitewater maw. Now 33, he is ready to live out that childhood fantasy at any cost. (Associated Press)

Nik Wallenda prepares to walk a tightrope as part of his training. As a 6-year-old at Niagara Falls with his parents, he pictured walking a tightrope over the raging, whitewater maw. Now 33, he is ready to live out that childhood fantasy at any cost. (Associated Press)

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