Families remember loved ones at September 11 memorial site
APTOPIX Sept 11 Anniversary
Credit: AP
President Barack Obama, right, first lady Michelle Obama, second from right, former President George W. Bush second from left, and former first lady Laura Bush arrive at the National September 11 Memorial for a ceremony marking the 10th anniversary of the attacks at World Trade Center, Sunday, Sept. 11, 2011 in New York. (AP Photo/Mary Altaffer)
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
Names of 9/11 victims ring out at World Trade Center site
Clinton, Boehner to raise Flight 93 memorial funds
Western Washington on Sept. 11, 2001
