a. Airplane black boxes were found at Ground Zero, according to two first responders and an unnamed NTSB official, but they were "disappeared" and their existence is denied in The 9/11 Commission Report.
b. US officials consistently suppressed and destroyed evidence (like the tapes recorded by air traffic controllers who handled the New York flights).
c. Whistleblowers (like Sibel Edmonds and Anthony Shaffer) were intimidated, gagged and sanctioned, sending a clear signal to others who might be thinking about speaking out.
d. Officials who "failed" (like Myers and Eberhard, as well as Frasca, Maltbie and Bowman of the FBI) were given promotions.
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