RIO DE JANEIRO, July, 6, 2016 (XINHUA) -- Carlos Arthur Nuzman (front), president of the Rio 2016 Organising Committee for the Olympic and Paralympic Games, addresses the inauguration ceremony of the integrated security operation for Rio 2016 Games at Barra Olympic Park in Rio de Janeiro, Brazil, on July 5, 2016. Brazil's top security force officially assumed control of security at the venues for the Rio 2016 Games in a ceremony at Barra Olympic Park on Tuesday, one month prior to the Rio 2016 Olympic Games. (Xinhua/Li Ming)
