What you post is correct but it's also hard to do. Once we would see people trapped 9 stories up and be confident that if they wet towels by doors etc they would be ok until the fire out. Now it's a "hurry" feeling. We saw the towers collapse and know that jet fuel and maybe explosives brought them down but you still keep it in the back of your mind, I think.
Jet Fuel, Yes. Explosives, No.