It's horrible. Devastating. All the lives lost, lives sacrificed. You're right, it should, and never will be forgotten. I've watched many, many documentaries and the videos are horrifying, the twin towers collapsing, people having no way out, jumping out the windows... It's very hard to watch, especially knowing that there was nothing people outside of the buildings and on the street could do... There were many heroes who's lives were lost that day... May they rest in peace...