Last month during the week of September 11, I watched a few minutes of a show on tv about the attack and collapse of the World Trade Center’s twin towers while I got ready in the morning. I don’t know what network it was on or the name of the documentary-type show (I was flipping through the channels), but a thing that was discusssed and which stuck with me is this: if you’re caught in a high-rise during a fire, do not to go up to the rooftop. Its one’s natural instinct to go up to a rooftop to get rescued, but as they explained on the show, it may take a helicopter up to 45 minutes to pick someone off a rooftop, drop them off somewhere safe, and return to the scene. That is if the conditions are safe for the helicopter to attempt such a rescue in the first place. During the attack at the WTC in 1993, officials learned that rescuing people from the tower’s rooftop was not feasible. After that incident, they stopped rooftop rescues and locked access to the towers’ rooftop. During the 9/11 attacks, experts on the show believe that workers caught in the towers’ attack may have gone up the floors trying to get to the rooftop…only to find the doors locked.