Terrorists want to terrorize. They need the media to do half of their work for them.
There’s little terror effect upon the wider populace for blowing up a plane where no one would see it go down.
Blow it up on final as it is coming in over a very densely populated area... where there is plenty of media that will be on the scene in mere minutes... and you’ve got a far higher “terror” potential than a plane that just disappears over oceans.
Militarily, there were far better attacks that could have been made instead of 9/11. Terrorists could have taken down huge swathes of the US power grid, creating a huge national turmoil. They could have poisoned major US urban water systems. They could have done a great many things with the number of people they had, yet they chose to attack the WTC with airplanes. Why? Because the majority of the national news media is there in NYC. There was a huge media coverage of the event - live, in full color, from many, many camera angles. The media did the rest of their work for them, in grand style.
They could have done a great many things with the number of people they had,
You act like they are finished.