“
John Cartier: The sound was so deafening. Michele Cartier, Lehman Brothers, North Tower, 40th floor: This high-pitched sound, and I didn’t know what that was, but it was so eerie, like your fingernails-on-a-chalkboard type of thing. Bruno Dellinger, principal, Quint Amasis North America, North Tower, 47th floor: I heard a sound that today I cannot remember. It was so powerful, such a huge sound that I blocked it. It scared me to death. I blocked it, and I cannot bring it back up to consciousness. Howard Lutnick, CEO, Cantor Fitzgerald, North Tower: The loudest sound I’d ever heard. Gregory Fried, executive chief surgeon, NYPD: I can’t even give you an analogy.
”
”
Garrett M. Graff (The Only Plane in the Sky: An Oral History of 9/11)