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Michael Phelps of the United States competes in the second semifinal heat of the men's 200 meter butterfly on Monday.
Michael Phelps of the United States competes in the second semifinal heat of the men's 200 meter butterfly on Monday.

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    London Games athletes under scrutiny

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London Games athletes under scrutiny

Ed Hula, founder and editor of "Around the Rings", discusses questioning surrounding athletes who break records.

London Games athletes under scrutiny

Ed Hula, founder and editor of "Around the Rings", discusses questioning surrounding athletes who break records.