Call me paranoid but
On opt-out day, I wonder if the TSA will temporarily lift the recent more onerous friskings and replace them with the faster old style pat-downs? They could show to the media and sheep that the opt-outers were just being hysterical.
Or (given the convenient nature of many such "terrorist" attacks) that another failed attempt will happen on the 24th, creating a told-you-so opportunity.
Wondering how they will try to spin things - because you know they will.
Just random thoughts inside my tinfoil hat.