FILE- In this July 18, 1970 file photo, daredevil Karl Wallenda nears the end of his tightrope walk across Tallulah Gorge, Ga. On Friday, June 15, 2012, Karl’s great grandson, Nick Wallenda, will ... more 
FILE- In this July 18, 1970 file photo, daredevil Karl Wallenda nears the end of his tightrope walk across Tallulah Gorge, Ga. On Friday, June 15, 2012, Karl’s great grandson, Nick Wallenda, will attempt a high wire walk over Niagara Falls on live television, hoping to write his famous family's name into the 153-year-old legend of daredevils who've "conquered" the natural wonder. (AP Photo/Bob Schutz, File) less 
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Associated Press | Photo By Bob Schutz, File
Fri, Jun 15, 2012 3:07 AM EDT