July 27, 2012; London, United Kingdom; United States flagbearer Mariel Zagunis leads her delegation into the stadium during the Opening Ceremony for the 2012 London Olympic Games at Olympic Stadium. Mandatory Credit: Richard Mackson-USA TODAY Sports
July 27, 2012; London, United Kingdom; United States flagbearer Mariel Zagunis leads her delegation into the stadium during the Opening Ceremony for the 2012 London Olympic Games at Olympic Stadium. Mandatory Credit: Richard Mackson-USA TODAY Sports