Marathon runners who cheat have become more sophisticated in their methods — they don't need to hop on a bus to stay ahead of the competition. See how one man is trying to stay a step ahead of them as a self-styled marathon investigator. NBC's Stephanie Gosk reports for Sunday TODAY.
Marathon runners who cheat have become more sophisticated in their methods – they don’t need to hop on a bus to stay ahead of the competition. See how one man is trying to stay a step ahead of them as a self-styled marathon investigator. NBC’s Stephanie Gosk reports for Sunday TODAY.
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