Could be. But still think that is by asking that you find loopholes it is not discovery channel I mean. Somehow, hethey neutralised the system and they slipped through the net, if you say they should have been on the no fly list given the outcome, by answering why they were not there is a possibility to find on the way whatever stopped the system to add them whether it is legal stuff or anything else.
What have you done then for the engine?