World Trade Center (1973–2001)
In the immediate aftermath of the attacks, media reports suggested that tens of thousands might have been killed in the attacks, as over 50,000 people could be inside the World Trade Center, although the National Institute of Standards and Technology (NIST) estimated that approximately 17,400 occupants were in the towers at the time of the attacks. Ultimately, 2,753 death certificates (excluding those for hijackers) were filed relating to the 9/11 attacks in New York City, including one filed for Felicia Dunn-Jones, who was added to the official death toll in ; Dunn-Jones died five months later from a lung condition linked to exposure to dust during the collapse of the World Trade Center. Three other victims were then added to the official death toll by the city medical examiner's office: Dr. Sneha Anne Philip, who was last seen the day before the attacks; Leon Heyward, a man who developed lymphoma and subsequently died in 2008 as a result of dust ingestion during the events following the attacks to the Twin Towers; and Jerry Borg, who died in December 2010 of pulmonary sarcoidosis determined in June 2011 to be the result of dust from the attacks. 2,192 civilians died in and around the World Trade Center, including 658 employees of Cantor Fitzgerald L.P. (an investment bank on the 101st–105th floors of One World Trade Center), 295 employees of Marsh & McLennan Companies (which was located immediately below Cantor Fitzgerald on floors 93–101, the location of Flight 11's impact), and 175 employees of Aon Corporation. In addition to the civilian deaths, 343 New York City Fire Department (FDNY) firefighters were killed in the attacks, as well as 71 law enforcement officers, including 37 members of the Port Authority Police Department (PAPD) and 23 members of the New York City Police Department (NYPD). Ten years after the attacks, remains of only 1,629 victims had been identified. Of all the people who were still in the towers when they collapsed, only 20 were pulled out alive.
United Kingdom–United States relations
67 Britons were among the 2,977 victims killed during the terrorist attacks on the World Trade Center in New York City, the Pentagon in Arlington County, Virginia, and in an open field near Shanksville, Pennsylvania, on September 11, 2001, which were orchestrated by al-Qaeda. Following the 11 September 2001 attacks, there was an enormous outpouring of sympathy from the United Kingdom for the American people, and Tony Blair was one of George W. Bush's strongest international supporters for bringing al-Qaeda and the Taliban to justice. Indeed, Blair became the most articulate spokesman. He was the only foreign leader to attend an emergency joint session of Congress called immediately after the attacks (and remains the only foreign leader ever to attend such a session), where he received two standing ovations from members of Congress. During this session of Congress, President George W. Bush stated matter-of-factly that "America has no truer friend than Great Britain".