Visitors embrace in front of the Wall of Names near the crash site of Flight 93 in Shanksville, Pa., on Sunday, Sept. 11, 2011. (AP Photo/Amy Sancetta)

Photo by: Amy Sancetta

Visitors embrace in front of the Wall of Names near the crash site of Flight 93 in Shanksville, Pa., on Sunday, Sept. 11, 2011. (AP Photo/Amy Sancetta)