I think, these guys aren't original at all. It's like watching Rocky movie sequels. Every plot (revenge) is same, methods (bomb/hostage) are same, entry of attacks are same (exploiting gaps), and subplots (demands) are same. At this point, I'm not really sure if it should be even categorically filed under "terror" or "TSA" anymore. Perhaps categorized under "Trial-and-Error"...
What would be original though is if a terror act so original, nothing is blown, only our minds. Like "WOW, I am impressed and terrorized at the same time by the display of originality". For instance, terrorist abducts Snooki and "Situation", and force them to learn method acting. Then the terrorist returns them as greatest method actors ever known. Later, the terrorist's plot unfolds as Snooki and "Situation" win the Oscar nomination, upsetting the balance of Universe.
TSA in turn can implement new security policy called "Water Fall" which provides all passengers with mandatory 1 liter drink beverages and alcohol 1 hour before boarding the plane and force passengers to listen to the sound of heavy water fall in the waiting area. Then if the passenger needs to go bathroom before boarding, the bathroom will be fitted with body scanner.
Obviously things like this will never happen because of their lack of understanding and originality.