[bitcon]

I bet it would take one hell of a blast. I bet a 747 at 500 miles an hour could do it though.

[eno_]

Not even close. High explosive releases a huge amount of energy. The '93 WTC attack almost brought down a tower with a low explosive car bomb.

[Squawk 8888]

I bet a 747 at 500 miles an hour could do it though.

Not likely- when aluminum meets concrete, the concrete wins every time. Look at the damage a direct hit did to the WTC- without the fires, the towers would never have collapsed because most of the steel beams remained intact. The fuel won't explode, just a fireball.