Who benefits?
When a political event doesn’t make sense it should be examined from a different direction.
Benghazzi might be a question of pay back.
Syria is no slouch in the information gathering business and likely have their own assets capable of pulling off an attack like Benghazzi.
Say Syria heard about US arming the people trying to oust Assad and know Stevens is a principle figure in the scheme.
How sweet for Syria that 9/11 exists. They can dress up their force in civilian clothes expecting them to be eventually identified as AlQuada.
All the sweeeter for Syria, launching Operation Payback on 9/11 reinforced the connection to America’s nightmare.
According to accounts, the attack was well done. On the scale of a military operation. Maybe even more military than officially recognized.
Just giving the caffeine free rein.
Your theory is the only one that makes sense. Other than snuffing him out to keep it quiet, why would terrorists bite the hand that feeds them? In that case, Obama and Hillary probably wet themselves.