Photographers who are taking pictures at the Pentagon, to document the scene of the attack there in as close as possible to its original state, are told to limit what evidence they photograph. FBI Special Agent Tom O’Connor—who is in charge of the initial evidence recovery operation at the Pentagon—and his superiors have put out the word that it is unnecessary to document every piece of the airplane. This is because, reportedly, “the smaller fragments didn’t prove anything, except that there was an airplane there, which was obvious enough from other evidence.” FBI Special Agent Garrett McKenzie, who is coordinating the effort to photograph evidence at the Pentagon, pulls together a dozen photographers for a briefing. He instructs them: “We don’t need to photograph all the plane parts, only unique airplane parts or something specific. Like the pilot’s yoke, or anything with part of a serial number on it. If we have to prove what kind of plane this was, the serial numbers will be what we need.” [Creed and Newman, 2008, pp. 181-183]