Good one cantaloupe, just reminded me of Bush and Rice saying after 9/11 "I don't think anyone could have imagined terrorsist flying planes into buildings, not in this administration and not in the previous administration" when a detailed study had been carried out on that very subject and was easily available.
And rogue2, you're absolutely right- it's one of those "elephants in the living room" that are so glaringly obvious people overlook them.