If there were anything President Obama or Secretary Clinton could have done to protect their friend, the Libyan Ambassador, I expect they would have don't it. I have seen no indication that there was anything they could have done to have saved him or the three others.
I'm certain your professions of faith in the Hildebeast and claims of ignorance of any dereliction of duty by her would comfort the bereaved families immensely.
As the assault began, at 4:05 p.m. ET on September 11, an alert from the State Department Operations Center was issued to various government emergency watch lists including the White House Situation Room, the office of the Director of National Intelligence, and the FBI.
Entitled "US Diplomatic Mission in Benghazi Under Attack," the alert reports "approximately 20 armed people fired shots; explosions have been heard as well. Ambassador Stevens, who is currently in Benghazi, and four COM (Chief of Mission/embassy) personnel are in the compound".
At 6:07 p.m. ET, an alert was sent with the subject heading "Ansar al-Sharia Claims Responsibilty for Benghazi Attack." The U.S. Embassy in Tripoli, says the alert, reports the group "claimed responsibility on Facebook and Twitter and has called for an attack on Embassy Tripoli."
That alert was sent around midnight in Benghazi, hours before the wave of mortar attacks against the CIA annex began.
No outside U.S. military help was sent to Benghazi despite the presence of a major naval air base in Sigonella, Italy, less than one hour's flight away.
Unarmed Predator drones were moved to fly over Benghazi during the attack.
In the weeks before his death, Stevens sent the State Dept. several requests for increased security for diplomats in Libya.
In an interview with CBS News' Margaret Brennan, Secretary Clinton acknowledges that the State Dept. considered using outside assets to rescue those under siege in Benghazi but decided against it:
"Well we considered everything and, um, we did as you know send additional assets from Tripoli. But it was a fast moving, very difficult assault to try to figure out. As you know, the assault on the post ended, there was a gap of time, then the assault on the annex, um, so everybody who had any responsibility was scrambling very hard to figure out what more could be done."
Clinton said they did not send assets from outside Libya "partly because of the difficulties of trying to do that."
http://www.cbsnews.com/8301-250_162-57584252/benghazi-timeline-how-the-probe-unfolded