Here’s a creepy thread from airliners.net for you.
The original post, which was made on November 30, 2000, asked what the chances are that the World Trade Center could survive a 767-300 ramming into it. Reading through the responses make you realize how much the world of flying has changed.
The last one says, “You would easily have 1500 or more, since you would have a 200 in the plane, at least 500 in the building, and a real s*itload on the ground. If the building managed to fall, there might be 5 or 6 thousand dead. Oh well. That’s why they put a/c lights on buildings…”
If only the lights on the buildings could have prevented what happened less than a year later.