Marines assigned to the Wounded Warrior Regiment visit the National September 11 Memorial & Museum, Feb. 1. The Marines visited the memorial as a way to pay their respects to those who lost their lives during the attacks as well as their fellow service members. (U.S. Marine Corps photo by Cpl. Daniel E. Valle). - Marines assigned to the Wounded Warrior Regiment visit the National September 11 Memorial & Museum, Feb. 1. The Marines visited the memorial as a way to pay their respects to those who lost their lives during the attacks as well as their fellow service members. (U.S. Marine Corps photo by Cpl. Daniel E. Valle).