Too controversial?

[trebuchet03]

So, the other day during one of my lectures, my professor went into the pitfalls of statically determinant designed structures. If you don't know what that means, don't worry, it's not that important to get into that just now.


So he gave two examples... First, that bridge that collapse in MN not too long ago. Second, the WTC tower collapses (he even had information from the trade center's website that has since been taken down).

So question, is it too controversial a subject for me to reiterate some of his lecture points (I'll have diagrams too) of one Engineer's perspective? As a tiny hint -- there's was a critical flaw in design which was outweighed by a design feature no other building ever had....