In 20, bin Laden again connected the September 11 attacks with U. support of Israel, although most of the letter expressed bin Laden's disdain for President Bush and bin Laden's hope to "destroy and bankrupt" the U. Other motives have been suggested in addition to those stated by bin Laden and al-Qaeda, including western support of Islamic and non-Islamic authoritarian regimes in Saudi Arabia, Iran, Egypt, Iraq, Pakistan and northern Africa, and the presence of western troops in some of these countries. Similarly, others have argued that 9/11 was a strategic move with the objective of provoking America into a war that would incite a pan-Islamic revolution.In late 1998 or early 1999, bin Laden gave approval for Mohammed to go forward with organizing the plot.He is serving a life sentence without parole in the United States.
On September 26, 2005, the Spanish high court sentenced Abu Dahdah to 27 years in prison for conspiracy on the 9/11 attacks and being a member of the terrorist organization al-Qaeda.
Hazmi and Mihdhar arrived in the United States in mid-January 2000.
In spring 2000, Hazmi and Mihdhar took flying lessons in San Diego, California, but both spoke little English, performed poorly with flying lessons, and eventually served as secondary – or "muscle" – hijackers.
9/11 was the single deadliest incident for firefighters and law enforcement officers in the history of the United States, with 343 and 72 killed respectively. The United States responded by launching the War on Terror and invading Afghanistan to depose the Taliban, which had harbored al-Qaeda. After evading capture for almost a decade, Osama bin Laden was located and killed by SEAL Team Six of the U. On November 18, 2006, construction of One World Trade Center began at the World Trade Center site.
Many countries strengthened their anti-terrorism legislation and expanded the powers of law enforcement and intelligence agencies to prevent terrorist attacks. The building was officially opened on November 3, 2014.