If I invited you here to check my analysis . . .

and you want to skip my philosophical musings, which I like but which could use some editing, please scroll down and begin at this paragraph in The 911-Pound Gorilla in Cato's Room:

The papers I have read and found unconvincing are Wierzbicki and Teng, How the airplane wing cut through the exterior columns of the World Trade Center, Int'l J. of Impact Engineering 28 (2003) 601-625, and Karim and Hoo Fatt, Impact of the Boeing 767 Aircraft Into the World Trade Center, J. of Engineering Mechanics, Vol. 131, No. 10 (October 2005).

http://ningens-blog.blogspot.com/2006/11/911-pound-gorilla-in-catos-room.html

Thank you!