and this was in 1993
http://en.wikipedia.org/wiki/Emad_Salem
http://nwo.media.xs2.net/tape/SalemWBAI.mp3
Emad A. Salem is an ex-Egyptian army officer turned FBI informant, who was a key witness in the trial of Ramzi Yousef, Abdul Hakim Murad, and Wali Khan Amin Shah, convicted in the World Trade Center Bombing of February 26, 1993. Salem was to help Yousef and the other plotters build a bomb and supply them with fake explosive powder, as part of a FBI sting operation. Salem testified that the FBI knew about the attack beforehand and told him they would thwart it by substituting the harmless powder for the explosives. However, an FBI supervisor called off this plan, and the bombing was not stopped. Once Salem realized that the FBI was providing real explosives to terrorists he began taping his telephone conversations with FBI agents. Those tapes were admitted in the trial and are now part of the public record.
The below is a transcript from part of one of the recordings Emad A. Salem made of a telephone conversation he had with one of his FBI handlers, FBI Special Agent John Anticev (MP3: [1][2]):
FBI Special Agent John Anticev: But, uh, basically nothing has changed. I'm just telling you for my own sake that nothing, that this isn't a salary, that it's—you know. But you got paid regularly for good information. I mean the expenses were a little bit out of the ordinary and it was really questioned. Don't tell Nancy I told you this. [Nancy Floyd is another FBI Special Agent who worked with Emad A. Salem in his informant capacity.]
FBI undercover agent Emad A. Salem: Well, I have to tell her of course.
Anticev: Well then, if you have to, you have to.
Salem: Yeah, I mean because the lady was being honest and I was being honest and everything was submitted with a receipt and now it's questionable.
Anticev: It's not questionable, it's like a little out of the ordinary.
Salem: Okay. Alright. I don't think it was. If that's what you think guys, fine, but I don't think that because we was start already building the bomb which is went off in the World Trade Center. It was built by supervising supervision from the Bureau and the D.A. and we was all informed about it and we know that the bomb start to be built. By who? By your confidential informant. What a wonderful, great case!
Anticev: Well.
Salem: And then he put his head in the sand and said "Oh, no, no, that's not true, he is son of a b****." [Deep breath.] Okay. It's built with a different way in another place and that's it.
Anticev: No, don't make any rash decisions. I'm just trying to be as honest with you as I can.
Salem: Of course, I appreciate that.
Anticev: And as far as the payments go, and everything like that, they're there. I guarantee you that they are there.
Salem also mentions in his testimony Operation Bojinka, a plot by the "Blind Sheikh" Omar Abdul-Rahman and his nephew, Ramzi Yousef, to, among other things, fly about 12 hijacked airplanes into prominent US buildings. They were subsequently convicted of "seditious conspiracy" in connection with the Bojinka Plot.