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WASHINGTON, DC - Jan 26: Lee H. Hamilton, former vice chairman of the National Commission on Terrorist Attacks Upon the United States, during the Senate Homeland Security and Governmental Affairs hearing on aviation security and the attempted bombing of Northwest Flight 253 on Christmas Day. (Photo by Scott J. Ferrell/Congressional Quarterly)

WASHINGTON, DC - Jan 26: Lee H. Hamilton, former vice chairman of the National Commission on Terrorist Attacks Upon the United States, during the Senate Homeland Security and Governmental Affairs hearing on aviation security and the attempted bombing of Northwest Flight 253 on Christmas Day. (Photo by Scott J. Ferrell/Congressional Quarterly)

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