BAD HARDWARE WEEK

I couldn't believe to my eyes. Read yourself:
In the course of the trial it was revealed that the FBI had an informant, an Egyptian man named Emad Salem, who was involved with the bombing conspiracy. Salem claims to have informed the FBI of the plot to bomb the towers as early as February 6, 1992, information he was privy to possibly because he himself initiated the plot !!. Salem's role as informant allowed the FBI to quickly pinpoint the conspirators out of the hundreds of possible suspects. Salem asserted that the original FBI plan was to supply the plotters with a harmless powder instead of actual explosive to build their bomb, but that an FBI supervisor decided that a real bomb should be constructed instead. He substantiated his claims with hundreds of hours of secretly-recorded conversations with his FBI handlers, made during discussions held after the bombings. Salem said he wished to complain to FBI headquarters in Washington about the failure to prevent the bombing despite foreknowledge, but was dissuaded from doing so by the New York FBI office. The FBI has never contradicted Salem's account.

And to this one:
But Manhattan's own nightmare could recur!.

In the second attack I know at least 5 foreign services knew and nothing again has been done to prevent those attacks??. I don't have any firm clue on FBI's knowledge this time, but why should the others, foreign secret services, know and FBI not?
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