World Trade Center site
On the morning of September 11, 2001, Islamic terrorists affiliated with Al-Qaeda hijacked American Airlines Flight 11 and United Airlines Flight 175, both which were en route to Los Angeles, and intentionally crashed them into the two main towers of the World Trade Center. The towers collapsed within two hours of the collisions. 2,606 people, including 2,192 civilians, 71 law enforcement officers, and 343 firefighters, who were in the towers and in the surrounding area died in the attacks, as well as 147 civilians and the 10 hijackers aboard the two airliners. After the collapse of the World Trade Center, hospital workers and law enforcement officers began referring to the World Trade Center site as "Ground Zero".
Richard Williamson (bishop)
Williamson supports conspiracy theories regarding the assassination of John F. Kennedy, and the World Trade Center controlled demolition conspiracy theory, denying that the September 11 attacks were foreign terrorist attacks and claiming they were instead staged by the U.S. government. He has also said that the 7 July 2005 London bombings were an "inside job" and propagated rumours about the likelihood of a nuclear attack on the London Olympics in 2012.