name: Admiral Hal Gehman

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Retired Admiral Hal Gehman (L), Chairman of the Columbia Accident Investigation Board, answers a question following the release of the final report on the space shuttle Columbia disaster as Dr. John Logsdon, another board member, looks on. NASA 's self-protective culture and its reluctance to tackle safety problems head-on contributed to the fatal breakup of shuttle Columbia, just as technical factors tore the ship apart, independent investigators reported on Tuesday. REUTERS/Win McNamee