Flight 93 memorial opens in Pennsylvania (14 images)

President George Bush, Laura Bush, President Bill Clinton, and Vice President Joe Biden attended the unveiling of the "Wall of Names" on September 10, 2001. The white marble wall has the names of the 40 victims of Flight 93 that perished in a terrorist attacks of 10 ten ago.
Updated: Sept. 10, 2011 at 7:17 PM
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A visitor walks along the wall that's part of the first phase of the Flight 93 National Memorial on the eve of it's dedication in Shanksville, Pennsylvania on September 9, 2011. UPI/Archie Carpenter
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