The US Secret Service played a significant role in responding to the attacks on September 11, 2001. Agents worked to prevent attacks on US leadership following the incident. Their efforts were part of a nationwide response to the attacks.

Further details about the Secret Service's actions are available, highlighting the seen and unseen heroism of agents during this time. The events of September 11, 2001, led to a widespread scramble by agents to protect US leadership.

More information can be found through the source, which recounts the US Secret Service's response to the 9/11 attacks and the efforts of agents across the nation.