Part 6/9:
In efforts to substantiate the existence of the planes, surveys of eyewitness accounts were gathered. However, only a small percentage of those near the World Trade Center reported seeing planes, with many witnesses not describing any aircraft at all.
Moreover, Dr. Judy Wood, a former professor of engineering mechanics, expressed skepticism regarding the nature of the damage done to the towers, arguing that the physical structures of the planes would not have been able to penetrate the steel columns as observed.