http://www.history.com/minisite.do?content_type=mini_home&mini_id=60026
It was made from the footage of 10 different people, ordinary citizens, who were filming from their homes, the street, from rooftops. I am horrified, I am rivited, I'm still sobbing. If you get a chance to see the documentary, you must. If you can't then spend some time at the website. Let us not forget.
