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A Transportation Security Administration (TSA) agent uses a special light to check the authenticity of a traveller’s driver’s license at Ronald Reagan Washington National Airport in Washington November 24, 2010 (Credit: Reuters/Jason Reed)

A Transportation Security Administration (TSA) agent uses a special light to check the authenticity of a traveller's driver's license at Ronald Reagan Washington National Airport in Washington November 24, 2010 (Credit: Reuters/Jason Reed)