Police Attacked protesters in Sao Paulo, Rio de Janeiro and several other host cities on Thursday as the World Cup got under way in Brazil.
Video: Police Repression during Sao Paulo protests. Shows police use riot weapons against a peaceful protest. One man being violently arrested was pepper sprayed within inches from his face while handcuffed. End of video shows the wounded arm of CNN producer in Sao Paulo, Barbara Arvanitidis when she was shot by a police fired tear gas canister.