In hundreds of people came. some people who were eyewitnesses to the attack, some people who lost loved one, some people who just experienced it the way the other americans did. the documentary filmmakers dave track down some of the people who share their stories in that booth. 20 years later. got them to sit down in front of a camera again, this. year to tell how their story has continued from then, over these past 20 years. it s amazing. all of those powerful stories, are now in this new documentary, coproduced with nbc news studios, it s called memory box. it s really really good. he really never seen anything like it. we will premiere it right here tomorrow night at 10 pm eastern. right after the show. we will actually show it commercial free. so, i just want to give you a heads. up you should plan ahead. after my show finishes tomorrow, night commercial, free 10 pm eastern. that documentary will air uninterrupted. and people want to see. it okay plan ahead. that does it for us f