Not including the hijackers, the attacks killed 2,977 people, injured thousands more and gave rise to substantial long-term health consequences while also generating at least $10 billion in infrastructure and property damage. It has been described by many as the deadliest terrorist act in human history and remains the deadliest incident for both firefighters and law enforcement personnel in the history of the United States, killing 340 and 72 from each organization.
The loss of life stemming from the impact of Flight 11 secured its place as the most lethal plane crash in aviation history followed by the death toll incurred by Flight 175. The destruction of the World Trade Center and its environs seriously harmed the U.S. economy and induced global market shocks. Many other countries strengthened anti-terrorism legislation and expanded their powers of law enforcement and intelligence agencies.
