History is a giant wave washing over the timeline, some things float to the top and get carried along with it, while others are swept away for ever. In the months after 9/11, footage of the event played on tv news every day for weeks. The attack only lasted a few hours, but hundreds of hours of video footage was captured. I assumed that the internet would hold a record of those video clips, but it really doesn't. All that exists now is some carefully curated footage and most of it is in documentaries. One particular memory I have can't be found online, maybe it's in some newsroom vault or maybe it was erased and taped over. But I can describe it. The man filming is running down the streets getting closer and closer to the first tower. He arrives just as the first tower falls. A wave of darkness blocks out the camera and you can hear the powerful wind howling past like a hurricane. Gradually light starts to come back and the street he was on is transformed into a mono-c...