ince the 1970s. Additional reporting on the story was provided by ABC News (09/11, Hutchinson), Associated Press (09/11, Binkley) (2), Axios (09/11, Alberty) (2), BBC (09/11, King, Morris), Bloomberg (09/11, Miller, Hall), Business Insider (09/11, Griffiths, Bharade), CBS News (09/12, Czachor), CNBC (09