Raven Saunders   of the US raised her arms and crossed them in the shape of an “X” on the podium after receiving her silver medal in the shot put. She said later the gesture was  “for oppressed people”. Photograph: Ina Fassbender/AFP/Getty Images

In the morning, Raven Saunders of the United States captured the silver medal in the shot put. At night, Saunders delivered the first political demon(...)