On September 11, 2001, al-Qaeda Islamist terrorists carried out a cowardly attack against the United States of America in which people lost their lives at the North Tower on AAL Flight 11, the South Tower on UAL Flight 175, the Pentagon on AAL Flight 77, and in Shanksville, PA, on UAL Flight 93. Heroic first responders and search-rescue and recovery personnel also lost their lives, and those who risked their lives for their fellow citizens and nation will always be remembered.