Im more worried about targets other than airplanes....trains, buses, waterways. We always seem to narrow our focus on the most recent attack and method after the fact, ignoring others. The airport waiting lines would provide a much bigger target than a single jet. I have very little confidence right now...stay vigilantWorth repeating.
I was discussing this with my wife, next it will homicide bombers in the security inspection areas.
A Universal time coordinated set of bombings at airport security, malls,churches, it could happen easily.