A woman becomes emotional after reading the name of her father as friends and relatives of the victims of 9/11 gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site, Tuesday, Sept. 11, 2012, in New York. (AP Photo/Jason DeCrow)
Americans across the country paused Tuesday to mark the 11th anniversary of the Sept. 11, 2001 terror attacks.