I believe that the obama/Hillary!™ plan was to have them captured and held hostage, so that obama would have an excuse to release the blind sheik and many/all Gitmo prisoners.
When the SEALS showed up, the muzzies assumed they'd been betrayed (after all such duplicity is what they would have done!) and proceeded to emasculate, sodomize, murder and sodomize Amb Stevens in pure spite, blood lust and revenge.
Now the treasonous bastiches really need a coverup!
Argo was released August 31, 2012.