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The Transportation Security Administration is an agency of the U.S. Department of Homeland Security that exercises authority over the security of the traveling public in the United States. The TSA was created as part of the Aviation and Transportation Security Act, sponsored by Don Young in the United States House of Representatives and Ernest Hollings in the Senate, passed by the 107th U.S. Congress, and signed into law by President George W. Bush on November 19, 2001. Originally part of the United States Department of Transportation, the TSA was moved to the Department of Homeland Security on March 9, 2003. John S. Pistole is the fifth TSA Administrator, having replaced former head Kip Hawley. (via Freebase)