I don't need a simulator, or any tapes. I remember walking through downtown, across the Key Bridge, and through Arlington on my way home that awful day, and I remember seeing the smoke and, vividly, smelling the fuel. Several of my family members had been working construction in the damaged section of the Pentagon not long earlier, and it was hours before I could confirm their safety- it remains the only time that I've actually passed out in anger and fear. My family was lucky, but so many others were not. May their loved ones rest someday in peace.