FILE - In this May 2, 2012 file photo, Nik Wallenda waves to tourists after a news conference in Niagara Falls, N.Y. The New York city of Niagara Falls says daredevil Wallenda still owes about $25,000 for public safety costs from last month's tightrope walk across the falls, and it's having a tough time collecting, according to reports Friday, July 20, 2012. Photo: AP
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