The existence of the memo was secret until it was leaked in 2002. CBS Evening News reported on the document on May 15.
The PDB was declassified and approved for release to the 9/11 Commission on April 10, 2004, and reported in the 9/11 Commission Report on July 22, 2004 According to the National Security Archive, President Bush was the first sitting president to release a PDB to the public.