Frequent fliers who meet certain security criteria -- which TSA would not disclose "for security reasons" -- may be invited by their airlines to join at no charge, provided they pass certain background checks.

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But it was clear: Duncan was in charge and Grossman mostly stayed in the background.

NPR: SC Man Among Leaders Arrested In FL Gambling Probe

Another senior executive in charge of power-generation fuel cells has a background in American utilities.

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