"Security concerns"

"After a delay of more than a week owing to security concerns, a team of several FBI investigators earlier this week visited the burned-down U.S. diplomatic compound in Benghazi ...".

FBI investigators visit Benghazi compound

"Security concerns?"

CNN had reporters in the compound picking up the ambassador's personal notes back on September 12. Elements of a USMC security detachment are on-site.

If it is safe enough for CNN reporters to be wandering around the area picking up classified documents off the floor for the last couple of weeks ... and the Marines have landed ...

what are the security concerns?

Or is this just more obfuscatory nonsense to cloud the collective HUA of the Obmanian State Department?