Though the NSA specializes in intercepting communications, the CIA and FBI intercept as well. After 9/11, CIA and FBI officials will discover messages with phrases like, “There is a big thing coming,”
“they’re going to pay the price,” and “We’re ready to go.” Supposedly, most or all of these intercepted messages will not be analyzed until after 9/11. [Newsweek, 10/1/2001]