Olympic Excitement Builds Amid Continuing Controversy

August 3, 2016 12:17 AM
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Athletes, sports teams and spectators from around the world are arriving in Rio de Janeiro ahead of Friday's opening of the Olympic Games. The anticipation is marred by controversy over Russia's participation following a huge doping scandal and rights groups' allegations of human rights abuses in the build-up to Brazil's Olympics. Zlatica Hoke reports.