The President's Daily Briefing (PDB) is a top secret document produced each morning by the Central Intelligence Agency for the President of the United States. It is intended to provide the president with new international intelligence warranting attention, and analysis of sensitive international situations. The CIA produced the first PDB in 1964, though it had of course produced briefs for the president before.
George Tenet considered the PDB so important that in July 2000 he took the position with the National Archives that none of them could be released for publication "no matter how old or historically significant it may be" [1].
Ari Fleischer, presidential press secretary, characterized the PDB during a press briefing on May 21, 2002 as "the most highly sensitized classified document in the government" [2].
The PDB came under increased public scrutiny during testimony in front of the National Commission on Terrorist Attacks Upon the United States. Several commissioners called for the PDB for August 6, 2001, entitled Bin Laden Determined to Attack Inside the United States, to be declassified.