Conspiracy Encyclopedia

On September 11, 2001, 19 al-Qaeda terrorists hijacked four commercial passenger jet airliners. The hijackers intentionally crashed two of the airliners into the Twin Towers of the World Trade Center in New York City, killing everyone on board and many others working in the buildings. Both buildings collapsed within two hours, destroying at least two nearby buildings and damaging others. The hijackers crashed a third airliner into the Pentagon and a fourth plane crashed into a field near Shanksville, Pennsylvania after the passengers and flight crew revolted.

Within the context of 9/11 conspiracy theories, the terms ‘mainstream account,’ ‘official account’ and ‘official conspiracy theory’ all refer to:

• The reports from government investigations — the 9/11 Commission Report (which incorporated intelligence information from the earlier FBI investigation (PENTTBOM) and the Joint Inquiry of 2002), and the studies into building performance carried out by the Federal Emergency Management Agency (FEMA) and the National Institute of Standards and Technology (NIST).
• Investigations by non-government organizations that support the mainstream account — such as those by the National Fire Protection Association, and by scientists of Purdue University and Northwestern University.
• Articles supporting these facts and theories appearing in magazines such as Popular Mechanics, Scientific American, and Time.
• Similar articles in news media throughout the world, including The Times of India, the Canadian Broadcasting Corporation (CBC), the BBC, Le Monde, Deutsche Welle, the Australian Broadcasting Corporation (ABC), and The Chosun Ilbo of South Korea.
• President Barack Obama’s June 2009 speech to the Muslim world where he said “I am aware that some question or justify the events of 9/11. But let us be clear: al-Qaeda killed nearly 3,000 people on that day.”

The 9/11 Commission Report disclosed prior warnings of varying detail of planned attacks against the United States by al-Qaeda. The report said that the government ignored these warnings due to a lack of communication between various law enforcement and intelligence personnel. For the lack of inter-agency communication, the report cited bureaucratic inertia and laws passed in the 1970s to prevent abuses that caused scandals during that era. The report faulted the Clinton and the Bush administrations with “failure of imagination”. Most members of the Democratic and the Republican parties applauded the commission’s work.