National Security Adviser Sandy Berger chairs a Cabinet-level meeting to review the wave of attempted terror attacks around the millennium. There are counterterrorism reports that disruption efforts “have not put too much of a dent” into bin Laden’s overseas network, and that it is feared “sleeper cells” of al-Qaeda operatives have taken root in the US. It is recommended that the FBI and the Immigration and Naturalization Service should begin “high tempo, ongoing operations to arrest, detain, and deport potential sleeper cells in the United States.” Some ideas, like expanding the number of Joint Terrorism Task Forces across the US, are adopted. Others, like a centralized translation unit for domestic intercepts, are not. [9/11 Commission, 3/24/2004] In July 2004, it is revealed that the Justice Department is investigating Berger for taking classified documents relating to this review effort out of a secure reading room in 2003. Most of the documents are returned, but a few apparently are lost. [Associated Press, 7/20/2004; Washington Post, 7/22/2004]