Primary and Secondary Sources Using 9/11 Resources

My students are learning about primary and secondary sources in social studies class. As a nation we are also approaching the 10th anniversary of the 9/11 attacks. When I found this YouTube video that is explaining primary and secondary sources by using speeches, pictures, artifacts, books etc. about 9/11, I thought it would be a perfect way to cover the two things. Unfortunately we can't watch YouTube videos at school, so I am requiring my students to watch this at home with their parents. I am putting the video in our Edmodo group. I wonder how many will watch it? I wonder how many will watch it with their parents? Well, I am asking them to respond to the video by posting a comment on Edmodo.