Firefighters carry a banner with the number 343, the number of firefighters killed on 9/11, in St. Patricks Cathedral in New York Saturday, Sept. 10, 2011, during a ceremony to honor New York firefighters who were killed ten years ago in the attacks on the World Trade Center. Photo 1 – New York firefighters listen to the roll call of the firefighters who died on September 11, 2001 during the 9/11 firefighter's memorial service. Photo 2 – A New York firefighter wears a bracelet remembering the 343 firefighters. Photo 3 – Firefighters leave St. Patrick's Cathedral with American flags. Photo 4 – New York Fire Department Commissioner Salvatore Cassano speaks during the 9/11 firefighter's memorial service at St. Patrick's Cathedral.