On March 29, 2009, Steven Bierfeldt was detained in a small room at Lambert-St. Louis International Airport and interrogated by Transportation Security Administration (TSA) officials for nearly half an hour after he passed a metal box containing cash through a security checkpoint X-ray machine. Bierfeldt was carrying the cash in connection with his duties as the Director of Development for the Campaign for Liberty, a political organization that grew out of Congressman Ron Paul's presidential campaign.

On June 18, 2009, the ACLU filed a complaint on behalf of Bierfeldt, charging that TSA is subjecting innocent Americans to unreasonable searches and detentions that violate the Constitution.

> Listen to the audio recording of Bierfeldt's interrogation.

> Airport and Watch List Harassment: Tell Your Story