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.
Bombing of Tokyo (10 March 1945)
Estimates of the number of people killed in the bombing of Tokyo on 10 March differ. After the raid, 79,466 bodies were recovered and recorded. Many other bodies were not recovered, however, and the city's director of health estimated that 83,600 people were killed and another 40,918 wounded. The Tokyo fire department put the casualties at 97,000 killed and 125,000 wounded, and the Tokyo Metropolitan Police Department believed that 124,711 people had been killed or wounded. After the war, the United States Strategic Bombing Survey estimated that 87,793 people had been killed and 40,918 injured. The Survey also stated that the majority of the casualties were women, children and elderly people. Frank wrote in 1999 that historians generally believe that there were between 90,000 and 100,000 fatalities, but some argue that the actual number was much higher. For instance, Edwin P. Hoyt stated in 1987 that 200,000 people had been killed and in 2009 Mark Selden wrote that the number of deaths may have been several times the estimate of 100,000 used by the Japanese and United States Governments. The large scale population movements out of and into Tokyo in the period before the raid, deaths of entire communities and destruction of records mean that it is not possible to know exactly how many died.