From salon.com

Over 120 CIA documents concerning 9/11, Osama bin Laden and counterterrorism were published today for the first time, having been newly declassified and released to the National Security Archive. The documents were released after the NSA pored through the footnotes of the 9/11 Commission and sent Freedom of Information Act requests.
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Many of the documents publicize for the first time what was first made clear in the 9/11 Commission: The White House received a truly remarkable amount of warnings that al-Qaida was trying to attack the United States. From June to September 2001, a full seven CIA Senior Intelligence Briefs detailed that attacks were imminent, an incredible amount of information from one intelligence agency. One from June called “Bin-Ladin and Associates Making Near-Term Threats” writes that “[redacted] expects Usama Bin Laden to launch multiple attacks over the coming days.” The famous August brief called “Bin Ladin Determined to Strike the US” is included. “Al-Qai’da members, including some US citizens, have resided in or travelled to the US for years, and the group apparently maintains a support structure here,” it says. During the entire month of August, President Bush was on vacation at his ranch in Texas — which tied with one of Richard Nixon’s as the longest vacation ever taken by a president. CIA Director George Tenet has said he didn’t speak to Bush once that month, describing the president as being “on leave.”