The Transportation Security Administration (TSA) is an agency of the United States Department of Homeland Security (DHS) that has authority over the security of transportation systems within, and connecting to the United States. It was created as a response to the September 11 attacks to improve airport security procedures and consolidate air travel security under a dedicated federal administrative law enforcement agency. The TSA develops broad policies to protect the U.S. transportation system, including highways, railroads, buses, mass transit systems, ports, pipelines, and intermodal freight facilities. It fulfills this mission in conjunction with other federal agencies and state partners. However, the TSA's primary focus is on airport security and the prevention of aircraft hijacking. It is responsible for screening passengers and baggage at more than 450 U.S. airports, employing screening officers in airports, armed Federal Air Marshals on planes, mobile teams of dog handlers, and explosives specialists. More information...
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