Airplane parts from United Airlines Flig
Airplane parts from United Airlines Flight 93, which crashed in Shanksville, Pennsylvania during the September 11, 2001 attacks after passengers fought with terrorists, are seen alongside other artifacts as part of a temporary exhibit at the Smithsonian National Museum of American History in Washington, DC, September 1, 2011. Running for for the 9 days leading up to the 10th anniversary of the terrorist attacks, the Museum will display more than 50 objects from the World Trade Center, Pentagon and Shanksville, Pennsylvania, in an exhibit titled, “September 11: Remembrance and Reflection.” AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)