The events of 9/11 as they unfolded through actual audio.
Semper Fi - Marine Corps Tribute
From General Dynamics Mission Systems: "The United States Marine Corps was established on November 10, 1775. To all Marines who have served and to those serving today - Thank You and Semper Fi! We hope that you watch and enjoy our tribute honoring the Marine Corps for 239 years of faithful service. From all of us at General Dynamics Mission Systems (formally GD Advanced Information Systems and GD C4 Systems)."