Remembering 9/11 (33 images)

An American flag stands stuck in a plaque of names of the victims of the September 11 attacks at North Pool of the 9/11 Memorial during ceremonies marking the 11th anniversary of the 9/11 attacks on the World Trade Center in New York, September 11 2012. One World Trade Center is at back. UPI/Mike Segar/Pool

Maicia Rodriguez holds a American Flag during a moment of silence at the South Tower pool during observances held on the eleventh anniversary of the attacks on the World Trade Center, at the site in New York, September 11, 2012. UPI/Timothy A. Clary/Pool

Carrie Bergonia remembers her fiancee Firefighter Joseph Ogren who died in the 9-11 attacks, after reading his name at poolside during observances held on the eleventh anniversary of the attacks on the World Trade Center, at the site in New York, September 11, 2012. UPI/Todd Maisel/Pool

Former New York Governor George Pataki, second left, former New York City Mayor Rudy Giuliani, third left, and New York State Governor Andrew Cuomo (R) attend the 9/11 commemoration ceremony held at the September 11th Memorial Plaza on September 11, 2012 in New York City. UPI Photo/Monika Graff