Are you of the belief that there was nothing that could have been done about Benghazi?
If yes, then do you believe that if you could "go back in time" that there is anything possible that could have been done to prevent this from ever happening?
Should have never helped coordinate, arm and finance the Sunni militia that 'NATO' used to overthrow the Gaddafi regime. If not for our meddling, Gaddafi loyalists would have had no reason to get revenge. Believe it or not, Libyans very much liked Gaddafi.
I doubt none of you will say no. Of course something could have been done. That being said, who failed?
The US Government (Clinton, Obama, etc.) for thinking they have the moral right to violently overthrow a regime using proxy fighters armed and trained by our tax dollars.
If you honestly believe there is nothing that could have been done, to either prevent or prepare for this scenario, then aren't all of our embassies around the world in danger?
Our Embassies are in great danger as long as we continue to hop skotch around the world instigating fake Arab revolutions (see Sunni uprisings), overthrowing governments and subverting the last traditional cultures left in the whole world (See Islam).
Benghazi must be investigated and things must change so this does not happen again, yet the liberals/democrats would rather us ignore the story, so their precious leaders don't get caught in the controversy.
This story has been made a big deal as a matter of political expediency. You're apparently eating it up and not asking other more basic questions that would lead to controversy for both parties.