Je rectifierais en disant que GH Bush est devenu directeur de la CIA en 1976, peu après la diffusion du Zfilm à la TV en 1975 qui fera un tollé. Ce sera le déclencheur de la HSCA cette même année 76. GHBush est officiellement perçu comme celui qui va remettre de l’ordre à la CIA... Laissons parler le président de la HSCA : 

In 2003, Robert Blakey, staff director and chief counsel for the Committee, issued a statement on the Central Intelligence Agency :

...I no longer believe that we were able to conduct an appropriate investigation of the [Central Intelligence] Agency and its relationship to Oswald.... We now know that the Agency withheld from the Warren Commission the CIA-Mafia plots to kill Castro. Had the commission known of the plots, it would have followed a different path in its investigation. The Agency unilaterally deprived the commission of a chance to obtain the full truth, which will now never be known. Significantly, the Warren Commission’s conclusion that the agencies of the government co-operated with it is, in retrospect, not the truth. We also now know that the Agency set up a process that could only have been designed to frustrate the ability of the committee in 1976-79 to obtain any information that might adversely affect the Agency. Many have told me that the culture of the Agency is one of prevarication and dissimulation and that you cannot trust it or its people. Period. End of story. I am now in that camp.[11]