The General Accountability Office (GAO) will conduct an entrance interview on June 17th to DHS and FEMA kicking off a study of how DHS and FEMA (and other DHS orgs) have attempted to and hopefully accomplished their assigned statutory missions since the events of 9/11/01! The report will be issued on September 10th, 2011.
I would argue that DHS, FEMA, and other orgs, have totally failed to handle the WMD assignment, the Cyber Security (CIP) assignment, and the Domestic Intel (together with privacy, civil liberties) assignment!
My conclusions reflect the reports of GAO itself and numerous other THINK TANKS!
It should also be noted that a slug of books and articles will be appearing after July 4th on the events of 9/11/01, and efforts successful and failed to adjust to those events since that date!
Two failed efforts that will be discussed are the failures of the FBI and the continued lack of interoperability of First Responders!
Good luck to all!