there are no words. >> there weren't, and there still aren't. it was unbelievable. just because we know now what we're seeing doesn't diminish the heartache or the shock. 2,977 americans died that day, and many of those who rushed to ground zero suffer still through lingering illness tied to the fumes and the rubble. today 57% of americans say the attacks changed how they lived their everyday lives. a whole generation of americans born in the shadow of 9/11 with no memory of the day itself. and tonight where there was once destruction and smoke, two towers of light shining into the new york city sky, calling again for unity and for us to never forget. o shake ♪