Clarke: forest / trees. Don’t lose sight of the forest when examining the precise texture of a tree’s bark or the pattern of a leaf. Not calling for intuitive guess work but one part of the brain should scan the bigger picture and then decide where to allow the forensic part to look to examine the detail. The bigger picture: novice pilots for towers 1 and 2; no plane at tower 7; and then consider Bill Biney’s statements on the change of policy from targeted to bulk acquisition of domestic and world wide data, which preceded the event in question.