911, Info Sharing, and The Wall

See the original post for links.

The rise of “the wall” between intelligence and law enforcement personnel that impeded the sharing of information within the U.S. government prior to September 11, 2001 was critically examined in a detailed monograph (pdf) that was prepared in 2004 for the 9/11 Commission. It is the only one of four staff monographs that had not previously been released. It was finally declassified and disclosed earlier this month.