How about some guys in expensive suits lease a 747 cargo plane to haul their "classic cars" from point A to point B. Then if they want complete control of the plane and they have their own pilots they just have to dispose of a couple pilots and loadmaster. Seems easier and way less messy than a hijacked airliner.
I don't think that would instill any"terror". I think there are several govts right now ****tin their pants, thinking about what may be possible. ... Ours included.