“In the seventy-two hours before 9/11, four more NSA [National Security Agency] intercepts suggested that a terrorist attack was imminent. But NSA did not translate or disseminate any of them until the day after 9/11 [September 12, 2001]. In one of the two most significant, one of the speakers said, ‘The big match is about to begin.’ In the other, another unknown speaker was overheard saying that tomorrow is ‘zero hour.’ ”
– Matthew M. Aid, The Secret Sentry, Page 216