It all fits into an appalling scenario with impeachable offenses for Obie....imho.
It was actually two weeks. Here is my take on why this happened.
Remember when the President of Libya came out a few days after the attack and said it was a terrorist attack linked to AQ and that foreign terrorists were involved because they have been infiltrating Libya for months? Couple that with the fact that it has been reported that three of the attackers were captured at the CIA annex in Benghazi and that they had been turned over to Libyan authorities. No doubt that informed the statements of the Libyan President.
The administration blamed the FBI delay on visa issues and that the situation was too dangerous on the ground in Benghazi. This was all a smokescreen to delay the investigation and perhaps hinder it since visiting a two or three week old "crime scene" would reveal less than being there almost immediately. It was interesting that a CNN reporter could enter the compound and find the Amb's personal journal a few days after the attack.
This is a huge cover-up that involves the President and Hillary Clinton primarily. They will delay the results of the investigation until after the election and if Obama is reelected, the results will be sanitized and buried to protect Obama and Hillary's future political ambitions. If Romney is elected he should appoint a special prosecutor to investigate what happened.
There I said it! Now I'm ready for the in-coming.