Alex, dude, you're nutz! The wings ARE that much weight but only because they are what is filled with explosive fuel! And the impact on the ground is what would (In my "non expert" opinion - however some French f'er doesn't seem to mind be "non-experts") have weakened the wings.

Skyscrapers are designed to we "non-rigid" so that they can flex rather than snap in a wind. Saying that they are weaker that the Pentagon is an understatement. And the Pentagon is HUGE. The mark in the side of it looks small, but it isn't.

But what is the oddest part of this is that we are expected to believe than in an hour, we intercepted a hi-jacked plan, somehow forced it to land (using that mind controlling device we got from the Roswell crash), secretly took the hijackers prisoners (because the government wouldn't want anyone to feel good by knowing we have terrorists prisoner), gave all the passangers new identities and then flew a drone or something into the Pentagon "for kicks".

If you really want to know what a small craft looks like when it hits a building - look at that little plane that crashed into the Florida building.