目击911事件。从不同的角度回忆911撞击美国世贸中心的事件，包括来自纽约消防局、纽约警察局的照片、视频、广播录音，还有普通人的电子信息、语音邮件，以及其他国家的报道。 Witness to 9-11. The 9-11 attacks on the World Trade Center are recalled through various sources, including photographs, video and radio recordings from the F.D.N.Y., N.Y.P.D., the Port Authority and amateurs electronic messages and voice mails and footage broadcast outside of the U.S.