The State Department has released the independent review board report, available here.  It provides many details, but ignores the big issue, which is the White House response once the attacks started.  I’m not sure if that was outside the scope of the investigation, but there’s no explanation as to why that issue was ignored.

Here are some of  the key findings:

“The Board concluded that there was no protest prior to the attacks, which were unanticipated in their scale and intensity.”

“However, 2012 saw an overall deterioration of the security environment in Benghazi, as highlighted by a series of security incidents involving the Special Mission, international organizations, non-governmental organizations (NGOs), and third-country nationals and diplomats…”

“Given the threat environment, the physical security platform in Benghazi was inadequate.”

“Terrorist networks are difficult to monitor, and the Board emphasizes the conclusion of previous accountability review boards that vulnerable missions cannot rely on receiving specific warning intelligence. Similarly, the lack of specific threat intelligence does not imply a lessening of probability of a terrorist attack. The Board found that there was a tendency on the part of policy, security and other U.S. government officials to rely heavily on the probability of warning intelligence and on the absence of specific threat information. The result was possibly to overlook the usefulness of taking a hard look at accumulated, sometimes circumstantial information, and instead to fail to appreciate threats and understand trends, particularly based on increased violence and the targeting of foreign diplomats and international organizations in Benghazi. The latter information failed to come into clear relief against a backdrop of the lack of effective governance, widespread and growing political violence and instability and the ready availability of weapons in eastern Libya. There were U.S. assessments that provided situational awareness on the persistent, general threat to U.S. and Western interests in eastern Libya, including Benghazi. Board members, however, were struck by the lack of discussion focused specifically on Benghazi.