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Sewage & sand ahead of the Rio Games - cnn.demo.robotrailer.com

Sewage & sand ahead of the Rio Games

Updated 2223 GMT (0623 HKT) March 10, 2017

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(CNN)Just weeks before the 2016 Olympics in Rio de Janeiro, venues for the Games faced construction delays and bizarre challenges - like sewage in sailing waters, and human body parts washing up at the volleyball beach.