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north korea potential hydrogren bomb test starr lead live_00005702
north korea potential hydrogren bomb test starr lead live_00005702

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    U.S. Official: N. Korea possibly tested H-bomb components

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U.S. Official: N. Korea possibly tested H-bomb components

CNN's Barbara Starr reports.

U.S. Official: N. Korea possibly tested H-bomb components

CNN's Barbara Starr reports.