The Federal Aviation Administration (FAA) tells the 9/11 Commission it has already given the Commission all the documents it asked the FAA for. John Farmer, head of the Commission team investigating what happened on the day of 9/11, finds this hard to believe, as the boxes of material the FAA has provided do not contain many tapes or transcripts of FAA communications on the day of the attacks. [Shenon, 2008, pp. 201] Later interviews of FAA staff will reveal there is a mountain of evidence the FAA is withholding from the Commission (see September 2003).