What agency was created as a direct response to the terrorist attacks on September 11, 2001?

The Transportation Security Administration (TSA) was established in direct response to the terrorist attacks on September 11, 2001. The TSA's formation was part of a comprehensive effort to enhance security in transportation systems across the United States, particularly in the aviation sector. Its primary function is to oversee security processes for all modes of transportation and to ensure that safety protocols are in place to prevent similar attacks in the future.

The TSA was specifically created to implement measures that would address the vulnerabilities in the air transportation system that were exploited during the 9/11 attacks. This included the introduction of stricter security screening procedures for passengers and baggage, the deployment of federal security personnel at airports, and the establishment of policies related to aviation security.

While other agencies mentioned, like the Federal Aviation Administration (FAA), also play significant roles in aviation safety and security, they existed prior to the attacks and were not specifically founded in response to them. The National Security Agency (NSA) is focused on national defense and foreign intelligence, and the Department of Justice oversees the enforcement of federal laws but was not specifically created as a direct consequence of the events of 9/11. Thus, the TSA is the most appropriate answer as it was directly established to enhance transportation security after the