Ground Zero ten years later
Sept 11 Rebuilding
Credit: AP
FILE - In this July 15, 2011 file photo, work continues on the National September 11 Memorial at the World Trade Center site in New York. The memorial is scheduled to open to the public on Sept. 12, 2011. (AP Photo/Mark Lennihan, File)
Other Photos
Thousands pay tribute at NYC World Trade Memorial
Courage of Flight 93 victims lauded at dedication
Memorial held for 343 firefighters lost on 9/11
Families remember loved ones at September 11 memorial site
Names of 9/11 victims ring out at World Trade Center site
Clinton, Boehner to raise Flight 93 memorial funds
