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US Navy 090911-N-8273J-048 President Barack Obama delivers remarks during a Sept. 11 remembrance ceremony at the Pentagon Memorial as Adm. Mike Mullen, chairman of the Joint Chiefs of Staff looks on.jpg - BotMultichillT

US Navy 090911-N-8273J-078 Family members and friends of victims of the Sept. 11, 2001 terrorist attack on the Pentagon listen as President Barack Obama delivers remarks during a Sept. 11 remembrance ceremony at the Pentagon Me.jpg - BotMultichillT

US Navy 090911-N-0696M-187 President Barack Obama greets family members attending the commemoration ceremony marking the eighth anniversary of the Sept. 11, 2009 terrorist attacks.jpg - BotMultichillT

Defense.gov News Photo 090911-D-9880W-021.jpg - Slick-o-bot

Defense.gov News Photo 090911-D-9880W-090.jpg - Slick-o-bot

Defense.gov News Photo 090911-D-9880W-108.jpg - Slick-o-bot

President Barack Obama visits Pentagon for Sept. 11 ceremony - Washington, D.C. 2012.jpg - Jacopo Werther

Defense.gov photo essay 090911-D-9880W-068.jpg - Slick-o-bot

Defense.gov photo essay 090911-N-0696M-152.jpg - Slick-o-bot

Defense.gov photo essay 090911-N-0696M-043.jpg - Slick-o-bot

Defense.gov photo essay 090911-D-9880W-151.jpg - Slick-o-bot

Flickr - The U.S. Army - Rendering honors (1).jpg - Matanya

Secretary of Defense Leon E. Panetta, left, President Barack Obama, center, and Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey render honors during the playing of the National Anthem during a cere 120911-D-TT977-133.jpg - Fæ

President Barack Obama addresses the audience at a ceremony commemorating the 11th anniversary of the Sept 120911-D-TT977-199.jpg - Fæ

President Barack Obama, right, Secretary of Defense Leon E. Panetta, center, and First Lady Michelle Obama observe a moment of silence after the president laid a wreath at a ceremony commemorating the 11th anni 120911-D-NI589-294.jpg - Fæ

Secretary of Defense Leon E. Panetta delivers his remarks as President Barack Obama, left, and Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey look out at the audience at a ceremony commemorating t 120911-D-NI589-518.jpg - Fæ

U.S. Army Gen. Martin Dempsey, right, the chairman of the Joint Chiefs of Staff, speaks during a ceremony commemorating the 11th anniversary of the Sept 120911-A-AO884-061.jpg - Fæ

President Barack Obama, center, speaks during a ceremony commemorating the 11th anniversary of the Sept 120911-A-AO884-090.jpg - Fæ

From left, first lady Michelle Obama; Secretary of Defense Leon Panetta; President Barack Obama; and U.S. Army Gen. Martin Dempsey, the chairman of the Joint Chiefs of Staff, render honors after placing a wreath 120911-A-AO884-023.jpg - Fæ

From left, Secretary of Defense Leon Panetta, President Barack Obama and U.S. Army Gen. Martin Dempsey, the chairman of the Joint Chiefs of Staff, render honors as the national anthem is played during a ceremony 120911-A-AO884-053.jpg - Fæ

President Barack Obama, center, speaks during a ceremony commemorating the 11th anniversary of the Sept 120911-A-AO884-094.jpg - Fæ

President Barack Obama, right, Secretary of Defense Leon E. Panetta, center, and First Lady Michelle Obama observe a moment of silence after the president laid a wreath at a ceremony commemorating the 11th 120911-D-NI589-294.jpg - Fæ

President Barack Obama and Secretary of Defense Leon E. Panetta observe a moment of silence at the Pentagon Memorial Sept 120911-D-NI589-408.jpg - Fæ

Secretary of Defense Leon E. Panetta delivers his remarks as President Barack Obama, left, and Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey look out at the audience at a ceremony commemorating 120911-D-NI589-518.jpg - Fæ

President Barack Obama speaks during a remembrance ceremony at the Pentagon Memorial Sept 120911-D-NI589-613.jpg - Fæ

President Barack Obama, right, shakes hands with Secretary of Defense Leon E. Panetta after Panetta's speech during a remembrance ceremony at the Pentagon Memorial Sept 120911-D-NI589-645.jpg - Fæ

President Barack Obama visits with family members of victims of the Sept 120911-D-NI589-912.jpg - Fæ

President Barack Obama visits with family members of victims of the Sept 120911-D-NI589-964.jpg - Fæ

From left, President Barack Obama; first lady Michelle Obama; Secretary of Defense Leon E. Panetta; Deanie Dempsey; and U.S. Army Gen. Martin E. Dempsey, the chairman of the Joint Chiefs of Staff, observe 120911-D-TT977-107.jpg - Fæ

From left, Secretary of Defense Leon E. Panetta, President Barack Obama and U.S. Army Gen. Martin E. Dempsey, the chairman of the Joint Chiefs of Staff, render honors as the national anthem is played during 120911-D-TT977-127.jpg - Fæ

President Barack Obama addresses the audience during a ceremony commemorating the 11th anniversary of the Sept 120911-D-TT977-199.jpg - Fæ

President Barack Obama speaks during the 9-11 observance ceremony at the Pentagon Sept 120911-F-3963C-756.jpg - Fæ

President Barack Obama delivers remarks during a 9-11 remembrance ceremony at the Pentagon Sept 120911-D-IE715-634.jpg - Fæ

From left, first lady Michelle Obama, Secretary of Defense Leon E. Panetta and President Barack Obama observe a moment of silence at the Pentagon Memorial during a 9-11 remembrance ceremony in Arlington, Va 120911-D-IE715-279.jpg - Fæ

From left, Secretary of Defense Leon E. Panetta, President Barack Obama and Chairman of the Joint Chiefs of Staff Army Gen. Martin E. Dempsey attend a remembrance ceremony at the Pentagon Memorial Sept 120911-D-NI589-356.jpg - Fæ

Chairman of the Joint Chiefs of Staff Army Gen. Martin E. Dempsey, right, speaks while President Barack Obama, center, and Secretary of Defense Leon E. Panetta observe at the Pentagon Memorial Sept 120911-D-NI589-414.jpg - Fæ

President Barack Obama speaks during a remembrance ceremony at the Pentagon Memorial Sept 120911-D-NI589-583.jpg - Fæ

President Barack Obama, right, shakes hands with Secretary of Defense Leon E. Panetta after Panetta's speech during a remembrance ceremony at the Pentagon Memorial Sept 120911-D-NI589-641.jpg - Fæ

President Barack Obama visits with family members of victims of the Sept 120911-D-NI589-895.jpg - Fæ

President Barack Obama visits with family members of victims of the Sept 120911-D-NI589-933.jpg - Fæ

Secretary of Defense Leon E. Panetta, left, and President Barack Obama render honors as the national anthem is played during a ceremony commemorating the 11th anniversary of the Sept 120911-D-TT977-122.jpg - Fæ

Secretary of Defense Leon E. Panetta, left, President Barack Obama, center, and Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey render honors during the playing of the National Anthem during 120911-D-TT977-133.jpg - Fæ

President Barack Obama, left, and U.S. Army Gen. Martin E. Dempsey, the chairman of the Joint Chiefs of Staff, attend a ceremony commemorating the 11th anniversary of the Sept 120911-D-TT977-180.jpg - Fæ

U.S. Army Gen. Martin E. Dempsey, at lectern, the chairman of the Joint Chiefs of Staff, delivers remarks during a 9-11 remembrance ceremony at the Pentagon Sept 120911-D-IE715-240.jpg - Fæ

U.S. Army Gen. Martin E. Dempsey, at lectern, the chairman of the Joint Chiefs of Staff, delivers remarks as President Barack Obama stands by during a 9-11 remembrance ceremony at the Pentagon Sept 120911-D-IE715-398.jpg - Fæ

9-11 Commemoration DVIDS665139.jpg - Fæ

Pentagon Remembrance service 120911-A-EE013-273.jpg - Fæ

Pentagon Remembrance service 120911-A-EE013-368.jpg - Fæ

Presidential greeting in the rain DVIDS203174.jpg - Fæ

P091112PS-0440 (8077973695).jpg - Vanished Account Byeznhpyxeuztibuo

Resident Barack Obama lays a wreath during a remembrance event at the Pentagon Memorial Sept. 11, 2009.jpg - Reguyla