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Nik Wallenda completes Niagara Falls tightrope walk

16 June 2012 Last updated at 08:35 BST

A man from a celebrated family of professional daredevils has completed a tightrope walk across Niagara Falls in a televised stunt.

Nik Wallenda braved wind and heavy spray to make the 1,800ft (550m) walk from the US to Canada on a two-inch (51mm) wire.

It is the first such feat over Niagara Falls in over a century.

Zoe Conway reports.