Police fire tear gas ahead of Rio opening ceremony

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Riot police have fired tear gas to stop protestors reaching the venue for Rio's Olympic opening ceremony. Alex Capstick has the latest, and we ask a governing party politician about the concerns that political turbulence could overshadow South America's first Olympics. Also: senior Tory peer Lord Tebbit tells us why he's not exactly delighted by David Cameron's decision to send a baker's dozen of Tories in his direction, towards the red benches. Plus, rapping in China, Chinese investment in the English Premier League...and Republicans for Hillary Clinton. Photo: Fireworks explode above the Maracana stadium, Rio Credit: Buda Mendes/Getty Images.