September 11 2001, Bush Family, Raytheon.

In 2000: Raytheon Engineers & Constructors is sold to Morrison Knudsen Corporation. George W. Bush's uncle, Jonathan J. Bush, served on the board of directors of the Morrison Knudsen Corporation in the 1980s and 1990s.Additionally, George W. Bush's grandfather, Prescott Bush, had connections to the Morrison Knudsen Corporation through his investment banking firm, Brown Brothers Harriman, which helped to finance some of the company's construction projects. George W. Bush himself was involved in the oil industry before entering politics and served as a director of Harken Energy Corporation, which had business connections to the Morrison Knudsen Corporation.
And Vannevar bush is a relative!
Raytheon 9/11.