FILE - In this Aug. 8, 2008, file photo, volunteers cheer during the opening ceremony in the National Stadium at the Beijing 2008 Olympics in Beijing. Rio De Janeiro needs 70,000 unpaid volunteers for the 2016 Olympics and Paralympics. Volunteers are not only unpaid, but they pay their own lodging and transportation to the host city. They get transportation to venues and meals only on the days they work, some training and uniforms to treasure. (AP Photo/Natacha Pisarenko, File)