Reports of dangerously high levels of viruses and bacteria in Rio de Janeiro's waters have raised - and renewed - fears that athletes are at risk of getting sick at next summer's Olympics.
Americans Kalyn Robinson and Chip Peterson can't help but wonder if a potential lifetime of health problems all goes back to the open water races they swam in the 2007 Pan American Games in Rio, where the waters are teeming with human waste.
There was more concern when 13 . . .
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