One moment in time changes the course of history

Soldiers, Airmen and Royal Air Force members stand in a joint formation for a ceremony on the seven-year anniversary of the terrorist attacks of Sept. 11, 2001, Sept. 11 at Sather Air Base, Iraq. (U.S. Air Force photo/Master Sgt. Brian Davidson)

One moment in time changes the course of history

Master Sgt. Todd Mullane presents flowers in memory of police officers and firefighters who selflessly gave their lives trying to rescue others after the terrorist attacks of Sept. 11, 2001, and military members who died in the name of freedom since that date during a Sept. 11 ceremony at Sather Air Base, Iraq. Sergeant Mullane is a 447th Air Expeditionary Group firefighter. (U.S. Air Force photo/Master Sgt. Brian Davidson)

Deployed N.Y.P.D. officer dedicates uniform for 9/11 display

Master Sgt. Rose Condello arranges the badge on her New York Police Department uniform she donated Sept. 11 at a Southwest Asia air base. The uniform was donated for a display at the 380th Air Expeditionary Wing where she is currently deployed. The badge is adorned with the traditional mourning band. Above the badge she has placed the breast band worn by New York City police officers with the letters "WTC" as a reminder of the day the World Trade Center fell. She is a deployed Air National Guard member. (U.S. Air Force photo/Tech. Sgt. Christopher A. Campbell)

Deployed N.Y.P.D. officer dedicates uniform for 9/11 display

Master Sgt. Rose Condello arranges the badge on her New York Police Department uniform she donated Sept. 11 at a Southwest Asia air base. The uniform was donated for a display at the 380th Air Expeditionary Wing where she is currently deployed. The badge is adorned with the traditional mourning band. Above the badge she has placed the breast band worn by New York City police officers with the letters "WTC" as a reminder of the day the World Trade Center fell. She is a deployed Air National Guard member. (U.S. Air Force photo/Tech. Sgt. Christopher A. Campbell)

Pentagon Memorial opens to public

One hundred eighty-four joint service troops unveil the Pentagon Memorial Sept. 11 at Alexandria, Va. The national memorial is the first to be dedicated to those killed at the Pentagon on Sept. 11, 2001. The site contains 184 inscribed memorial units honoring the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day. (Defense Department photo/Master Sgt. Adam Stump)

Pentagon Memorial opens to public

The sun rises over the main stage before the start of the Pentagon Memorial dedication ceremony Sept. 11 at Alexandria, Va. The national memorial is the first to be dedicated to those killed at the Pentagon on Sept. 11, 2001. The site contains 184 inscribed memorial units honoring the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day. (Defense Department photo/Master Sgt. Adam Stump)