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fighting polluted olympic rio waters watson pkg_00004805

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    Olympic athletes vs. Rio's polluted waters

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Olympic athletes vs. Rio's polluted waters

Many athletes, especially those involved in water sports, are dealing with a pollution problem in Rio's waters. CNN's Ivan Watson reports.

Olympic athletes vs. Rio's polluted waters

Many athletes, especially those involved in water sports, are dealing with a pollution problem in Rio's waters. CNN's Ivan Watson reports.