on CNN's Kathleen Koch visits a Washington exhibit on 9/11 with items from the Library of Congress collection. news_911_groundzero_old_rts.jpg home Remembering 9/11 http://premium.cnn.com/pr/video/meta/us/2002/09/08/kk.911.loc.exhib.cnn.np.smil?rpurl=http://www.cnn.com 10314151242090 cnn.gif video.gif http://premium.cnn.com/pr/video/meta/us/2002/09/08/kk.911.loc.exhib.cnn.np.smil?rpurl=http://www.cnn.com 10314151242091 PLAY lock_icon.gif lock_icon.gif lock_icon.gif big_headline