Smithsonian unveils a new 9/11 exhibit (11 images)

Tools used to remove debris at Ground Zero in New York are seen at the September 11: Remembrance and Reflection exhibit at The Smithsonian National Museum of American History on September 1, 2011, in Washington, DC. More than 50 items from New York, the Pentagon and Shanksville, Pa, as well as new acquisitions from the Transportation Security Administration are on display in commemoration of the 10th anniversary of the September 11 attacks. UPI/Roger L. Wollenberg

Artifacts from the Pentagon, including an M&Ms dispenser, ID tag and concrete support are seen at the September 11: Remembrance and Reflection exhibit at The Smithsonian National Museum of American History on September 1, 2011, in Washington, DC. More than 50 items from New York, the Pentagon and Shanksville, Pa, as well as new acquisitions from the Transportation Security Administration are on display in commemoration of the 10th anniversary of the September 11 attacks. UPI/Roger L. Wollenberg

Artifacts from the crash of Flight 93 in Shanksville, Pennsylvania are seen at the September 11: Remembrance and Reflection exhibit at The Smithsonian National Museum of American History on September 1, 2011, in Washington, DC. More than 50 items from New York, the Pentagon and Shanksville, Pa, as well as new acquisitions from the Transportation Security Administration are on display in commemoration of the 10th anniversary of the September 11 attacks. UPI/Roger L. Wollenberg

Items discovered by the Transportation Security Administration (TSA) during screening - including scissors, a grenade, and box cutters - are seen at the September 11: Remembrance and Reflection exhibit at The Smithsonian National Museum of American History on September 1, 2011, in Washington, DC. More than 50 items from New York, the Pentagon and Shanksville, Pa, as well as new acquisitions from the Transportation Security Administration are on display in commemoration of the 10th anniversary of the September 11 attacks. UPI/Roger L. Wollenberg