olympic community but some say valiyeva s natural talent is too much to ignore. here s a former coach. translator: she s simply a prodigy in her gift. she is a brilliant child, there is talent plus hard work plus ability plus desire. and illegal substances. kristie lu stout is here. she s blaming it with a mixup on her grandfather s medication. what more can you tell snus. reporter: yeah, it s an interesting new development. kamilia valiyeva saying her positive drug test was a result of a mixup with her grandfather s heart medicine. an official told this to the media. of course it was on friday, that s when we heard the international testing agency say