Folks, the question is this -- what delay? According to every single news report I have heard, there is no delay. Nor should there be. You're not the one doing the checking of the bags, the airline is. If the plane is going to be delayed because they are screening someone's luggage or because someone didn't make it on board, it makes no difference to you if you have checked a bag or not.

There's no need to change your behavior because of this new procedure.