I've had the same concerns. Everyone's focused on airports; meanwhile, the Islamofascists are truly focused on something else - and much bigger.
Yeah, well... the info today said the plot was OK'ed by Zawahri, so I guess it might be legit. I have wondered about it since it was uncovered, for some reason. It does fit into their MO of going back to finish a failed job, but 10 planes blowing up - however terrible it would be - would likely not have the same impact as 9/11.
I too believe that there is something much bigger in the plans.