Donald Rumsfeld
The United States was attacked on September 11, 2001 by al Qaeda terrorists who hijacked commercial airliners and crashed them in coordinated strikes into both towers of the World Trade Center in Lower Manhattan, New York City and the Pentagon in Washington, D.C. The fourth plane crashed into a field in Shanksville, Pennsylvania, and its target was likely a prominent building in Washington, D.C., most probably either the Capitol Building or the White House. Within three hours of the start of the first hijacking and two hours after American Airlines Flight 11 struck the World Trade Center, Rumsfeld raised the defense condition signaling of the United States offensive readiness to DEFCON 3, the highest it had been since the Arab-Israeli war in 1973.
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.