Which law enforcement agency was reassigned to TSA from Immigration and Customs Enforcement?

The Federal Air Marshal Service was reassigned to the Transportation Security Administration (TSA) as part of a broader effort to enhance aviation security after the events of 9/11. This reassignment was aimed at consolidating transportation security efforts under a single agency to ensure a more coordinated and effective response to potential threats in the aviation sector. The Federal Air Marshal Service plays a critical role in ensuring the safety of passengers and airline crews by providing an armed presence on flights and taking action to address in-flight threats.

This decision to move the Federal Air Marshal Service to TSA reflects the heightened focus on transportation security and the need for specialized law enforcement capabilities to manage the risks associated with air travel. In contrast, the other agencies listed, such as the U.S. Secret Service, U.S. Marshals Service, and Federal Bureau of Prisons, have distinct missions and areas of focus that do not directly align with the specific needs of transportation security as the Federal Air Marshal Service does.