linked - Investigating the Terror

charge must have been based on the defendants' capacity to manufacture
a particular explosive. Williams' answer to Campriello's question should
have been compatible with the answer he gave us: [The main explosive]
could have been anything. We conclude that by answering instead, [T]he
bulk of the explosive was, in my opinion, urea nitrate, Williams failed in
his responsibility to provide the court with an objective, unbiased expert
opinion.
c. Weight of the Explosive
Williams testified at the Salameh trial as follows concerning the weight of
the explosive used in the Trade Center bomb:
Q. And based on your conclusion concerning the type of
explosive did you estimate the quantity of explosive that was
necessary to do the damage that you saw at the World Trade
Center?
A. Yes, I did. And that kind of an analysis, once you recognize
the velocity of detonation of the explosive, and you recognize the
amount of damage that was created, you're able to kind of
estimate how much explosive it would cause in a given
environment to create that kind of damage. My initial estimate
was somewhere between a thousand and 1500 pounds. That was
within a day or two after. And that's about what I estimated,
somewhere within that range. As a ballpark figure, about 1200
pounds.
If you recall, one of the variables, and why I'm such a large
bracket, if you recall last Thursday I showed you some of the
charts that showed configuration of explosives with the arrows
going off at right angles and the Monroe effect with the shaped
charge. The Monroe effect is how the shaped charges work and
cut the steel with opposing angles. Without knowing the
configuration of the explosive that's why we have such a
tremendous variation.
In his OIG interview he explained further:
OIG: . . . [W]hat is it that gets you to between 1,000 and 1,500?
What is it about the damage that leads [you to] that conclusion?