They say that Penn is smart if that's the case this episode was the exception to his rule. He just completely ignored all the evidence that would suggest that 911 was an inside job and took sides. Jimmy Walter is a bright man who excelled at math and science in his high school in South Carolina and Eric hufscmid spent a lot of effort in his book painful questions. And yet jimmy Walter called it all Bullsh*t just so he would have an episode idea. Jimmy Walter was right about the explosions thing there are clearly peaces flying strait up and over. And when Penn was confronted with that evidence all he said was O.K.
Then he quickly changed the topic to showing Jimmy Walter in his ford Taurus, and chicken hawk helmet. And when Eric Hufscmid explained his version of what happened on 911 Penn just said "Did you do all that hard hitting data research in you're a$$?. "
Penn and teller you need to look into the evidence more.