In the dangerous desert sands of northern Iraq, an NBA referee arrived in July on a mission that had nothing to do with officiating.

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Former referee Hue Hollins said Thursday on ESPN's "Outside The Lines" that federal investigators "questioned me about Dick Bavetta more than they did about Tim Donaghy."

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Tim Donaghy, the NBA ref at the center of a federal investigation into fixing games and betting on contests he officiated, was forced into helping crooked gamblers by a fledgling gangster who threatened him, The Post has learned.

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