This thread is moving very fast, so I'll apologise in advance for addressing something from two pages back, but I just didn't want to see it go unchallenged:
Heres what Fire Engineering said about the FEMA investigation:
"half-baked farce that may already have been commandeered by political forces whose primary interests, to put it mildly, lie far afield of full disclosure."
Docker, why are you so dishonest? Do you understand why the firefighters are upset? It has NOTHING to do with explosives or a conspiracy. It has to do with SAFETY in commercial construciton. Did you bother reading the article at all? Here's the same article further down the page (bolding mine).
However, respected members of the fire protection engineering community are beginning to raise red flags, and a resonating theory has emerged: The structural damage from the planes and the explosive ignition of jet fuel in themselves were not enough to bring down the towers. Rather, theory has it, the subsequent contents fires attacking the questionably fireproofed lightweight trusses and load-bearing columns directly caused the collapses in an alarmingly short time. Of course, in light of there being no real evidence thus far produced, this could remain just unexplored theory.
Do you understand what they are saying? They question the structural integrity of the trusses and columns. They are upset because they see this as a good opportunity to learn about what materials could have been used to prevent the full collapse and what materials may have led to the collapse. They see this opportunity has been wasted.
I am currently a DB Admin, but spent many years as a truss designer. I have mentioned in the past (actually, way back in the very first Loose Change Thread) that firefighters HATE trusses. Trusses (both wood and steel) are quick, easy, lightweight and inexpensive - however, due to their physical makeup (less material, more surface area, etc) they fail EXTREMELY rapidly in fire situations, and usually without any warning at all.
Firefighters are a tight and emotional group. When one of their brothers loses his life because of a structural failure, they want to know why it happened. They want to know what cause it. They want to know what the construction industry is doing to prevent these things from happening in the future.
I wouldn't argue that the firefighters have a right to complain about the investigation. But do not steal their quotes as if you and they are fighting the same cause with the same questions. Go ahead and read that article again, and let me know if you think any firefighters think that ANYTHING besides the plane (and resulting fuel/fire/structural failure) brought those towers down.