Circles within circles and curliques. The non-interpretation in the article above seems a tad simplicistic.

But if Obama really wants to cool Middle East conflicts and reassure Americans of the transparency of government, he should refuse to accept Petraeus' resignation and order him to testify before Congress.

A possible reality but maybe not the worst is: Ambassador Stevens was involved in a rogue CIA operation, gun-running to Syria to topple Prime Minister Assad. Everyone at the top knew about the gun-running and couldn't stop it. Everyone also knew of a coming attack on Stevens. The ones at the top -- Obama, Clinton, Petraeus - decided to not stop that.